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Watch: The Creation of "Intelligent" GSATs by ISRO, KSG India
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The Creation of "Intelligent" GSATs by ISRO, KSG India
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KSG PODCAST | Satellite navigation programme | Times of India #upsc #editorial #ksgindia
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Today's Headlines - 31 July 2023
ISRO PSLV-C56 mission successful
GS Paper - 3 (Space Technology)
India space agency, ISRO, on 30 July 2023 successfully launched its proven PSLV rocket carrying seven Singaporean satellites from Satish Dhawan Space Centre, Sriharikota. After lift-off, the primary satellite got separated and it was followed by six other co-passenger satellites, which were deployed into the intended orbits sequentially.
The primary payload
The primary payload carried by ISRO's trusted workhorse Polar Satellite Launch Vehicle is the DS-SAR Radar Imaging Earth Observation satellite, which has been developed under a partnership between DSTA (representing the Government of Singapore) and ST Engineering, Singapore.
The 360-kg satellite, upon deployment at an altitude of 535 km into a Near-equatorial Orbit (NEO), would be used to support the satellite imagery requirements of various agencies within the Government of Singapore.
ST Engineering would use the satellite for multi-modal and higher responsiveness imagery and geospatial services for their commercial customers.
The satellite carries a Synthetic Aperture Radar (SAR) payload developed by Israel Aerospace Industries.
The payload allows DS-SAR to provide for all-weather day-and-night coverage and it is capable of imaging at 1-metre resolution.
The co-passenger satellites are:
VELOX-AM, a 23 kg technology demonstration microsatellite
ARCADE Atmospheric Coupling and Dynamics Explorer (ARCADE), an experimental satellite
SCOOB-II, a 3U nanosatellite flying a technology demonstrator payload
NULloN by NuSpace, an advanced 3U nanosatellite enabling seamless Internet of Things connectivity in both urban and remote locations
Galassia-2, a 3U nanosatellite that would be orbiting at low earth orbit
ORB-12 STRIDER, a satellite developed under an international collaboration.
About Launch Vehicle
This mission is the 58th flight of PSLV and using the 17th vehicle with Core Alone Configuration.
A Core Alone version of the rocket means the vehicle would not use solid strap-on motors on its sides in the first stage as compared to other variants like PSLV-XL, QL, and DL which use six, four, or two boosters, respectively.
PSLV has earned its title as the 'Workhorse of ISRO' through consistently delivering various satellites into low earth orbits.
This is the second campaign to be undertaken by ISRO after the much-awaited Chandrayaan-3 mission which was launched on 14 July 2023 from the second launch pad, at Satish Dhawan Space Centre.
#upsc #news #todayheadline #ISRO #PSLV #mission #space #technology #india #agency #launched #singaporean #satellite #satishdhawan #sriharikota #singapore #NEO #geospatial #SAR #aerospace #industries #israel #VELOXAM #ARCADE #SCOOB #NULION #GALSSSIA2 #ORB12 #chandrayaan3
ISRO PSLV-C56 mission successful
GS Paper - 3 (Space Technology)
India space agency, ISRO, on 30 July 2023 successfully launched its proven PSLV rocket carrying seven Singaporean satellites from Satish Dhawan Space Centre, Sriharikota. After lift-off, the primary satellite got separated and it was followed by six other co-passenger satellites, which were deployed into the intended orbits sequentially.
The primary payload
The primary payload carried by ISRO's trusted workhorse Polar Satellite Launch Vehicle is the DS-SAR Radar Imaging Earth Observation satellite, which has been developed under a partnership between DSTA (representing the Government of Singapore) and ST Engineering, Singapore.
The 360-kg satellite, upon deployment at an altitude of 535 km into a Near-equatorial Orbit (NEO), would be used to support the satellite imagery requirements of various agencies within the Government of Singapore.
ST Engineering would use the satellite for multi-modal and higher responsiveness imagery and geospatial services for their commercial customers.
The satellite carries a Synthetic Aperture Radar (SAR) payload developed by Israel Aerospace Industries.
The payload allows DS-SAR to provide for all-weather day-and-night coverage and it is capable of imaging at 1-metre resolution.
The co-passenger satellites are:
VELOX-AM, a 23 kg technology demonstration microsatellite
ARCADE Atmospheric Coupling and Dynamics Explorer (ARCADE), an experimental satellite
SCOOB-II, a 3U nanosatellite flying a technology demonstrator payload
NULloN by NuSpace, an advanced 3U nanosatellite enabling seamless Internet of Things connectivity in both urban and remote locations
Galassia-2, a 3U nanosatellite that would be orbiting at low earth orbit
ORB-12 STRIDER, a satellite developed under an international collaboration.
About Launch Vehicle
This mission is the 58th flight of PSLV and using the 17th vehicle with Core Alone Configuration.
A Core Alone version of the rocket means the vehicle would not use solid strap-on motors on its sides in the first stage as compared to other variants like PSLV-XL, QL, and DL which use six, four, or two boosters, respectively.
PSLV has earned its title as the 'Workhorse of ISRO' through consistently delivering various satellites into low earth orbits.
This is the second campaign to be undertaken by ISRO after the much-awaited Chandrayaan-3 mission which was launched on 14 July 2023 from the second launch pad, at Satish Dhawan Space Centre.
#upsc #news #todayheadline #ISRO #PSLV #mission #space #technology #india #agency #launched #singaporean #satellite #satishdhawan #sriharikota #singapore #NEO #geospatial #SAR #aerospace #industries #israel #VELOXAM #ARCADE #SCOOB #NULION #GALSSSIA2 #ORB12 #chandrayaan3
Today's Headlines - 03 August 2023
ISRO rocket debris on Australian shore
GS Paper - 3 (Space Technology)
A large object found on the shores of western Australia a couple of weeks ago has been confirmed to be the debris of an Indian Space Research Organisation (ISRO) rocket, the Australian Space Agency said. ISRO has agreed with the assessment, saying the debris could be from one of its Polar Satellite Launch Vehicle (PSLV) rockets. The ISRO said the agency was still to decide on the future course of action.
Are such incidents normal?
Junk from space objects falling to the earth are not unheard of. Most such incidents involve relatively small fragments from rockets that survive the friction of the atmosphere.
These usually do not make big news, also most of the time the space junk falls into oceans thus posing little danger to human populations.
But there have been a few highly publicised falls as well. In recent times, a large chunk of a 25-tonne Chinese rocket fell into the Indian Ocean in May 2021.
The most famous such case remains that of the Skylab space station, a predecessor to the currently operational International Space Station, which disintegrated in 1979.
Large chunks from this disintegration fell into the Indian Ocean, some of them falling on land in Western Australia.
Isn’t it dangerous?
The threat to life and property from falling space junk is not negligible. Even when falling into the oceans, which is more likely since 70 per cent of the earth’s surface is ocean, large objects can be a threat to marine life, and a source of pollution.
However, there are no recorded incidents of these falling objects causing any appreciable damage anywhere on the earth. When they have dropped over land, so far, it has been over uninhabited areas.
What happens if these objects cause damage?
There are international regulations governing space debris, which include junk falling back on the earth.
Most space-faring countries are signatories to the Convention on International Liability for Damage Caused by Space Objects.
This convention is one of the several international agreements that complement the Outer Space Treaty, the overarching framework guiding the behaviour of countries in space.
The Liability Convention deals mainly with damage caused by space objects to other space assets, but it also applies to damage caused by falling objects on earth.
The Convention makes the launching country “absolutely liable” to pay compensation for any damage caused by its space object on the earth or to a flight in air. The country where the junk falls can stake a claim for compensation if it has been damaged by the falling object.
In the current case, if the PSLV junk had caused any damage in Australia, India could have been liable to pay compensation, even if the object fell into the ocean and was then swept to the shores.
The amount of compensation is to be decided “in accordance with international law and the principles of justice and equity”.
This provision of the Convention has resulted in compensation payment only once so far — when Canada sought damages from the then Soviet Union, for a satellite with radioactive substance that fell into an uninhabited region in its northern territory in 1978. The Soviet Union is reported to have paid 3 million Canadian dollars.
#upsc #news #headline #ISRO #rocket #australian #space #technology #PSLV #satelite #launch #Vehicle #atmosphere #Indian #ocean #western #marine #earth #damage #countries #liability #canada #soviet #canadian #dollars #territory #shores #satellite
ISRO rocket debris on Australian shore
GS Paper - 3 (Space Technology)
A large object found on the shores of western Australia a couple of weeks ago has been confirmed to be the debris of an Indian Space Research Organisation (ISRO) rocket, the Australian Space Agency said. ISRO has agreed with the assessment, saying the debris could be from one of its Polar Satellite Launch Vehicle (PSLV) rockets. The ISRO said the agency was still to decide on the future course of action.
Are such incidents normal?
Junk from space objects falling to the earth are not unheard of. Most such incidents involve relatively small fragments from rockets that survive the friction of the atmosphere.
These usually do not make big news, also most of the time the space junk falls into oceans thus posing little danger to human populations.
But there have been a few highly publicised falls as well. In recent times, a large chunk of a 25-tonne Chinese rocket fell into the Indian Ocean in May 2021.
The most famous such case remains that of the Skylab space station, a predecessor to the currently operational International Space Station, which disintegrated in 1979.
Large chunks from this disintegration fell into the Indian Ocean, some of them falling on land in Western Australia.
Isn’t it dangerous?
The threat to life and property from falling space junk is not negligible. Even when falling into the oceans, which is more likely since 70 per cent of the earth’s surface is ocean, large objects can be a threat to marine life, and a source of pollution.
However, there are no recorded incidents of these falling objects causing any appreciable damage anywhere on the earth. When they have dropped over land, so far, it has been over uninhabited areas.
What happens if these objects cause damage?
There are international regulations governing space debris, which include junk falling back on the earth.
Most space-faring countries are signatories to the Convention on International Liability for Damage Caused by Space Objects.
This convention is one of the several international agreements that complement the Outer Space Treaty, the overarching framework guiding the behaviour of countries in space.
The Liability Convention deals mainly with damage caused by space objects to other space assets, but it also applies to damage caused by falling objects on earth.
The Convention makes the launching country “absolutely liable” to pay compensation for any damage caused by its space object on the earth or to a flight in air. The country where the junk falls can stake a claim for compensation if it has been damaged by the falling object.
In the current case, if the PSLV junk had caused any damage in Australia, India could have been liable to pay compensation, even if the object fell into the ocean and was then swept to the shores.
The amount of compensation is to be decided “in accordance with international law and the principles of justice and equity”.
This provision of the Convention has resulted in compensation payment only once so far — when Canada sought damages from the then Soviet Union, for a satellite with radioactive substance that fell into an uninhabited region in its northern territory in 1978. The Soviet Union is reported to have paid 3 million Canadian dollars.
#upsc #news #headline #ISRO #rocket #australian #space #technology #PSLV #satelite #launch #Vehicle #atmosphere #Indian #ocean #western #marine #earth #damage #countries #liability #canada #soviet #canadian #dollars #territory #shores #satellite
Today's Headlines - 07 August 2023
Satellite bus technology transfer to private firm
GS Paper- 3 (Space Technology)
ISRO said it has transferred the IMS-1 Satellite Bus Technology to Alpha Design Technologies Pvt. Ltd in a step towards enhancing private industry participation in the country's space sector. NewSpace India Limited (NSIL), the commercial arm of ISRO, facilitated the technology transfer through an agreement signed during an event held at the NSIL headquarters 2, the space agency said.
More about the News
The technology transfer documents were formally handed over by D Radhakrishnan, Chairman and Managing Director of NSIL to Col. H S Shankar (Retd.), Chairman and Managing Director of ADTL.
ADTL is one of the two private players identified to receive the transfer of this technology through Interest Exploratory Note (IEN) published by NSIL.
This transfer marks the beginning of satellite bus technologies developed by ISRO being transferred to private industries. Further, the PSLV is under productionisation by a consortium of industries.
ISRO has been enabling private players to develop space technologies by facilitating and extending the expertise thus ensuring both out-bound and in-bound approaches.
By transferring the IMS-1 technology to the private sector, ISRO/DoS (Department of Space) aims to bolster India's industrial growth in the space sector and foster technological self-reliance, it further said, adding the development opens up new avenues for private players to contribute to space research and exploration, in line with India's vision to expand its presence in the global space market.
About Satellite bus
The satellite bus, developed by ISRO's U R Rao Satellite Centre (URSC), is a versatile and efficient small satellite platform designed to facilitate low-cost access to space.
The bus serves as a dedicated vehicle for various payloads, enabling earth imaging, ocean and atmospheric studies, microwave remote sensing, and space science missions while ensuring a quick turnaround time for satellite launches.
The IMS-1 bus, weighing about 100 kg, accommodates a 30kg payload. Solar arrays generate 330W power with a raw bus voltage of 30-42 V, ISRO said, adding it offers a 3-axis stabilised with four reaction wheels with a 1 Newton thruster that provides +/- 0.1 degree pointing accuracy.
It is a forerunner for IMS-2 bus technology, capable of improved features, and IMS-1 bus is utilised in previous ISRO missions like IMS-1, Youthsat and Microsat-2D.
About ADTL
Alpha Design Technologies Pvt. Ltd (ADTL) is an aerospace and defence company, with expertise in engineering, manufacturing, and system integration.
It has been a key player in various projects related to defence, space and homeland security, contributing significantly to India's technological progress in these domains.
#upsc #news #headline #satellite #technology #ISRO #Alpha #NSIL #DrRadhkrishnan #IEN #documents #PSLV #space #global #URSC #earth #launches #solar #accuracy #IMS #engineering #aerospace #ADTL #defence
Satellite bus technology transfer to private firm
GS Paper- 3 (Space Technology)
ISRO said it has transferred the IMS-1 Satellite Bus Technology to Alpha Design Technologies Pvt. Ltd in a step towards enhancing private industry participation in the country's space sector. NewSpace India Limited (NSIL), the commercial arm of ISRO, facilitated the technology transfer through an agreement signed during an event held at the NSIL headquarters 2, the space agency said.
More about the News
The technology transfer documents were formally handed over by D Radhakrishnan, Chairman and Managing Director of NSIL to Col. H S Shankar (Retd.), Chairman and Managing Director of ADTL.
ADTL is one of the two private players identified to receive the transfer of this technology through Interest Exploratory Note (IEN) published by NSIL.
This transfer marks the beginning of satellite bus technologies developed by ISRO being transferred to private industries. Further, the PSLV is under productionisation by a consortium of industries.
ISRO has been enabling private players to develop space technologies by facilitating and extending the expertise thus ensuring both out-bound and in-bound approaches.
By transferring the IMS-1 technology to the private sector, ISRO/DoS (Department of Space) aims to bolster India's industrial growth in the space sector and foster technological self-reliance, it further said, adding the development opens up new avenues for private players to contribute to space research and exploration, in line with India's vision to expand its presence in the global space market.
About Satellite bus
The satellite bus, developed by ISRO's U R Rao Satellite Centre (URSC), is a versatile and efficient small satellite platform designed to facilitate low-cost access to space.
The bus serves as a dedicated vehicle for various payloads, enabling earth imaging, ocean and atmospheric studies, microwave remote sensing, and space science missions while ensuring a quick turnaround time for satellite launches.
The IMS-1 bus, weighing about 100 kg, accommodates a 30kg payload. Solar arrays generate 330W power with a raw bus voltage of 30-42 V, ISRO said, adding it offers a 3-axis stabilised with four reaction wheels with a 1 Newton thruster that provides +/- 0.1 degree pointing accuracy.
It is a forerunner for IMS-2 bus technology, capable of improved features, and IMS-1 bus is utilised in previous ISRO missions like IMS-1, Youthsat and Microsat-2D.
About ADTL
Alpha Design Technologies Pvt. Ltd (ADTL) is an aerospace and defence company, with expertise in engineering, manufacturing, and system integration.
It has been a key player in various projects related to defence, space and homeland security, contributing significantly to India's technological progress in these domains.
#upsc #news #headline #satellite #technology #ISRO #Alpha #NSIL #DrRadhkrishnan #IEN #documents #PSLV #space #global #URSC #earth #launches #solar #accuracy #IMS #engineering #aerospace #ADTL #defence
Today's Headlines - 08 August 2023
Chandrayaan enters moon orbit
GS Paper - 3 (Space Technology)
TWENTY-THREE days after it left earth, Chandrayaan-3, aiming to become the first Indian spacecraft to make a soft landing on the moon, entered lunar orbit, completing another milestone in its journey. This means that the spacecraft which had been moving towards the moon for the last five days — since it emerged out of its earth-bound orbit — has now begun to circle around the moon.
More about the Mission
MOX, ISTRAC, this is Chandrayaan-3. I am feeling lunar gravity, said ISRO, putting words to what must only be an electronic signal from the spacecraft to the Mission Operations Complex (MOX) at the ISRO Telemetry, Tracking and Command Network (ISTRAC).
As of now, the spacecraft is in an elliptical orbit around the moon, that is 18,074 km from the lunar surface at its farthest and 164 km at the nearest.
This orbit altitude would be lowered progressively over the next few days, ultimately achieving a circular orbit of 100 km x 100 km, from which a final descent on the lunar surface is planned around 23 August 2023.
This is the third time that an Indian spacecraft has entered lunar orbit. The previous two Chandrayaan missions had also reached this phase.
Flashback
Chandrayaan-1 was only meant to be an orbiter, it did send out an instrument called Moon Impact Probe to crash land on the lunar surface.
Chandrayaan-2 was supposed to make a soft landing but could not, faltering in the last few seconds of its journey.
Chandrayaan-3 has taken slightly less time to reach the lunar orbit compared to Chandrayaan-2, which reached this destination in 30 days. But Chandrayaan-3 will spend more time in the lunar orbit, before attempting the soft landing.
If the soft landing is successful, it will make India the fourth country in the world to do so after the US, Russia and China.
Chandrayaan-3 is attempting to become the first mission to land near the lunar south pole. Other missions have so far landed close to the moon’s equator.
#upsc #news #headline #chandrayaan #moon #orbit #space #technology #indian #spacecraft #softlanding #milestone #mission #ISRO #MOX #telemetry #tacking #network #ISTRAC #lunar
Chandrayaan enters moon orbit
GS Paper - 3 (Space Technology)
TWENTY-THREE days after it left earth, Chandrayaan-3, aiming to become the first Indian spacecraft to make a soft landing on the moon, entered lunar orbit, completing another milestone in its journey. This means that the spacecraft which had been moving towards the moon for the last five days — since it emerged out of its earth-bound orbit — has now begun to circle around the moon.
More about the Mission
MOX, ISTRAC, this is Chandrayaan-3. I am feeling lunar gravity, said ISRO, putting words to what must only be an electronic signal from the spacecraft to the Mission Operations Complex (MOX) at the ISRO Telemetry, Tracking and Command Network (ISTRAC).
As of now, the spacecraft is in an elliptical orbit around the moon, that is 18,074 km from the lunar surface at its farthest and 164 km at the nearest.
This orbit altitude would be lowered progressively over the next few days, ultimately achieving a circular orbit of 100 km x 100 km, from which a final descent on the lunar surface is planned around 23 August 2023.
This is the third time that an Indian spacecraft has entered lunar orbit. The previous two Chandrayaan missions had also reached this phase.
Flashback
Chandrayaan-1 was only meant to be an orbiter, it did send out an instrument called Moon Impact Probe to crash land on the lunar surface.
Chandrayaan-2 was supposed to make a soft landing but could not, faltering in the last few seconds of its journey.
Chandrayaan-3 has taken slightly less time to reach the lunar orbit compared to Chandrayaan-2, which reached this destination in 30 days. But Chandrayaan-3 will spend more time in the lunar orbit, before attempting the soft landing.
If the soft landing is successful, it will make India the fourth country in the world to do so after the US, Russia and China.
Chandrayaan-3 is attempting to become the first mission to land near the lunar south pole. Other missions have so far landed close to the moon’s equator.
#upsc #news #headline #chandrayaan #moon #orbit #space #technology #indian #spacecraft #softlanding #milestone #mission #ISRO #MOX #telemetry #tacking #network #ISTRAC #lunar
Today's Headlines - 12 August 2023
Russia’s Luna-25 mission
GS Paper - 3 (Space Technology)
As the Chandrayaan-3 mission tightens its orbit around the Moon, Russia was launched its first moon-landing spacecraft in 47 years on 11 August 2023. The Luna-25 mission is scheduled to land on the Moon on 23 August 2023, the same day as Chandrayaan-3’s planned landing.
More about Luna-25
Luna-25 was launched from the Vosthochny cosmodrome in the Russian Far East less than a month after Chandrayaan-3 launched from the Satish Dhawan Space Center in Sriharikota.
The Russian mission will try to land on the lunar South Pole just like the Indian mission, aiming for a prized destination that may hold significant quantities of ice that could be used to extract oxygen and fuel in the future.
If either of the missions succeeds before the other, it will be the first one to land on the lunar South Pole in human history.
Roscosmos, Russia’s ISRO counterparts said that Luna-25 will practice soft-landing, analyse soil samples and conduct long-term scientific research on the Moon’s surface.
The Chandrayaan-3 mission is carrying an orbiter, a lander and a rover. The lander and rover are carrying many scientific payloads.
This is Russia’s first lunar mission since 1976 when the country was part of the Soviet Union and it will be completed without equipment from the European Space Agency (ESA). ESA ended its cooperation with Roscosmos after Russia invaded Ukraine.
Luna-25 has a mass of 1.8 tons and carries 31 kilograms of scientific equipment, including some that it will use to take rock samples from up to a depth of 15 centimetres to test for the presence of water that could be used to support future crewed missions to the Moon.
The mission was originally scheduled to launch in October 2021 but was marred by many delays.
The Russian mission will take a lot less time to reach the Moon than Chandrayaan-3 because the latter is taking a longer route that takes advantage of the gravities of the Earth and the Moon to use a lot less fuel.
Russia willevacuate villagers from a village near the launch site due to a “one in a million chance” that one of the rocket stages that launches could fall to the Earth there.
#upsc #news #headline #russia #luna #mission #space #technology #chandrayaan #moon #spacecraft #vosthochny #cosmodrome #lunar #southpole #indianmission #oxygen #soil #history #land #human #orbiter #ESA #launch #gravaities #earth #october #rover #ISRO #fuel
Russia’s Luna-25 mission
GS Paper - 3 (Space Technology)
As the Chandrayaan-3 mission tightens its orbit around the Moon, Russia was launched its first moon-landing spacecraft in 47 years on 11 August 2023. The Luna-25 mission is scheduled to land on the Moon on 23 August 2023, the same day as Chandrayaan-3’s planned landing.
More about Luna-25
Luna-25 was launched from the Vosthochny cosmodrome in the Russian Far East less than a month after Chandrayaan-3 launched from the Satish Dhawan Space Center in Sriharikota.
The Russian mission will try to land on the lunar South Pole just like the Indian mission, aiming for a prized destination that may hold significant quantities of ice that could be used to extract oxygen and fuel in the future.
If either of the missions succeeds before the other, it will be the first one to land on the lunar South Pole in human history.
Roscosmos, Russia’s ISRO counterparts said that Luna-25 will practice soft-landing, analyse soil samples and conduct long-term scientific research on the Moon’s surface.
The Chandrayaan-3 mission is carrying an orbiter, a lander and a rover. The lander and rover are carrying many scientific payloads.
This is Russia’s first lunar mission since 1976 when the country was part of the Soviet Union and it will be completed without equipment from the European Space Agency (ESA). ESA ended its cooperation with Roscosmos after Russia invaded Ukraine.
Luna-25 has a mass of 1.8 tons and carries 31 kilograms of scientific equipment, including some that it will use to take rock samples from up to a depth of 15 centimetres to test for the presence of water that could be used to support future crewed missions to the Moon.
The mission was originally scheduled to launch in October 2021 but was marred by many delays.
The Russian mission will take a lot less time to reach the Moon than Chandrayaan-3 because the latter is taking a longer route that takes advantage of the gravities of the Earth and the Moon to use a lot less fuel.
Russia willevacuate villagers from a village near the launch site due to a “one in a million chance” that one of the rocket stages that launches could fall to the Earth there.
#upsc #news #headline #russia #luna #mission #space #technology #chandrayaan #moon #spacecraft #vosthochny #cosmodrome #lunar #southpole #indianmission #oxygen #soil #history #land #human #orbiter #ESA #launch #gravaities #earth #october #rover #ISRO #fuel
Today's Headlines - 14 August 2023
Parachute deployment tests for Gaganyaan
GS Paper - 3 (Space Technology)
ISRO has successfully conducted a series of tests on drogue parachutes, which would play a pivotal role in stabilising the crew module and reducing its velocity to a safe level during re-entry in the planned Gaganyaan human space flight mission.
More about the Mission
The Gaganyaan mission hopes to safely transport astronauts to Space and back. Drogue parachutes are deployed to decrease speed and stabilise rapidly moving objects.
ISRO's Thiruvananthapuram-based Vikram Sarabhai Space Centre (VSSC) successfully conducted a series of Drogue Parachute Deployment Tests at the Rail Track Rocket Sled (RTRS) facility of the Terminal Ballistics Research Laboratory in Chandigarh during 8-10 August.
The tests were conducted in collaboration with Aerial Delivery Research and Development Establishment (ADRDE)/DRDO.
The drogue parachutes, packed within pyro-based devices known as mortars, are cleverly designed to eject the parachutes into the air upon command.
These conical ribbon-type parachutes, boasting a diameter of 5.8 metres, employ a single-stage reefing mechanism, ingeniously minimising canopy area and mitigating opening shock, ensuring a smooth and controlled descent.
During the three comprehensive tests conducted at the RTRS facility, a range of real-world scenarios were simulated to rigorously evaluate the performance and reliability of the drogue parachutes.
The first test simulated the maximum reefed load, marking a groundbreaking introduction of reefing in a mortar-deployed parachute within India.
The second test emulated the maximum dis-reefed load, while the third test showcased the deployment of the drogue parachute under conditions mirroring the maximum angle of attack experienced by the crew module during its mission.
These successful RTRS tests serve as a critical qualification milestone for the drogue parachutes, confirming their readiness for integration into the upcoming Test Vehicle-D1 mission.
Notably, earlier this year, theRTRS tests of Pilot and Apex cover separation parachutes were also conducted, further accentuating the progress of the Gaganyaan mission's parachute system development.
Theintricate parachute sequence for the Gaganyaan crew module's deceleration system encompasses a total of 10 parachutes.
#upsc #news #headline #parachute #gaganyaan #space #technology #mission #flight #ISRO #deploment #VSSC #RTRS #ADRDE #DRDO #rail #diameter #mortars #mechanism #drogue #Pilot #system #world #ribbon #speed #vikramsarabhai #centre #conical #crew
Parachute deployment tests for Gaganyaan
GS Paper - 3 (Space Technology)
ISRO has successfully conducted a series of tests on drogue parachutes, which would play a pivotal role in stabilising the crew module and reducing its velocity to a safe level during re-entry in the planned Gaganyaan human space flight mission.
More about the Mission
The Gaganyaan mission hopes to safely transport astronauts to Space and back. Drogue parachutes are deployed to decrease speed and stabilise rapidly moving objects.
ISRO's Thiruvananthapuram-based Vikram Sarabhai Space Centre (VSSC) successfully conducted a series of Drogue Parachute Deployment Tests at the Rail Track Rocket Sled (RTRS) facility of the Terminal Ballistics Research Laboratory in Chandigarh during 8-10 August.
The tests were conducted in collaboration with Aerial Delivery Research and Development Establishment (ADRDE)/DRDO.
The drogue parachutes, packed within pyro-based devices known as mortars, are cleverly designed to eject the parachutes into the air upon command.
These conical ribbon-type parachutes, boasting a diameter of 5.8 metres, employ a single-stage reefing mechanism, ingeniously minimising canopy area and mitigating opening shock, ensuring a smooth and controlled descent.
During the three comprehensive tests conducted at the RTRS facility, a range of real-world scenarios were simulated to rigorously evaluate the performance and reliability of the drogue parachutes.
The first test simulated the maximum reefed load, marking a groundbreaking introduction of reefing in a mortar-deployed parachute within India.
The second test emulated the maximum dis-reefed load, while the third test showcased the deployment of the drogue parachute under conditions mirroring the maximum angle of attack experienced by the crew module during its mission.
These successful RTRS tests serve as a critical qualification milestone for the drogue parachutes, confirming their readiness for integration into the upcoming Test Vehicle-D1 mission.
Notably, earlier this year, theRTRS tests of Pilot and Apex cover separation parachutes were also conducted, further accentuating the progress of the Gaganyaan mission's parachute system development.
Theintricate parachute sequence for the Gaganyaan crew module's deceleration system encompasses a total of 10 parachutes.
#upsc #news #headline #parachute #gaganyaan #space #technology #mission #flight #ISRO #deploment #VSSC #RTRS #ADRDE #DRDO #rail #diameter #mortars #mechanism #drogue #Pilot #system #world #ribbon #speed #vikramsarabhai #centre #conical #crew
Today's Headlines - 16 August 2023
Isro’s space probe to study the Sun
GS Paper - 3 (Space Technology)
The Indian Space Research Organisation (Isro) released images of the Aditya-L1 mission — the space agency’s first attempt to study the Sun. The satellite has reached the Satish Dhawan Space Center (SDSC) in Sriharikota, Andhra Pradesh, for its integration with the launch vehicle, PSLV.
What is the Aditya-L1 mission?
The Aditya-L1 will observe the Sun from a close distance, and try to obtain information about its atmosphere and magnetic field.
It’s equipped with seven payloads (instruments) on board to study the Sun’s corona, solar emissions, solar winds and flares, and Coronal Mass Ejections (CMEs), and will carry out round-the-clock imaging of the Sun.
Why is studying the Sun important?
Every planet, including Earth and the exoplanets beyond the Solar System, evolves — and this evolution is governed by its parent star.
The solar weather and environment affect the weather of the entire system. Variations in this weather can change the orbits of satellites or shorten their lives, interfere with or damage onboard electronics, and cause power blackouts and other disturbances on Earth. Knowledge of solar events is key to understanding space weather.
To learn about and track Earth-directed storms, and to predict their impact, continuous solar observations are needed.
Every storm that emerges from the Sun and heads towards Earth passes through L1, and a satellite placed in the halo orbit around L1 of the Sun-Earth system has the major advantage of continuously viewing the Sun without any occultation/eclipses.
L1 refers to Lagrangian/Lagrange Point 1, one of five points in the orbital plane of the Earth-Sun system. Lagrange Points, named after Italian-French mathematician Josephy-Louis Lagrange, are positions in space where the gravitational forces of a two-body system (like the Sun and the Earth) produce enhanced regions of attraction and repulsion.
These can be used by spacecraft to reduce fuel consumption needed to remain in position. The L1 point is home to the Solar and Heliospheric Observatory Satellite (SOHO), an international collaboration project of NASA and the European Space Agency (ESA).
The L1 point is about 1.5 million km from Earth, or about one-hundredth of the way to the Sun. Aditya L1 will perform continuous observations looking directly at the Sun.
NASA’s Parker Solar Probe, launched in 2018, has already gone far closer — but it will be looking away from the Sun.
The earlier Helios 2 solar probe, a joint venture between NASA and the space agency of erstwhile West Germany, went within 43 million km of the Sun’s surface in 1976.
#upsc #news #headline #ISRO #study #sun #space #technology #india #space #research #technology #aditya #mission #SDSC #satishdhawanspacecenter #srihorikota #andhrapradesh #PSLV #distance #magnetic #corona #solar #planet #weather #earth #repulsion #gravitational #forces #fuel #SOHO #NASA #germany #surface
Isro’s space probe to study the Sun
GS Paper - 3 (Space Technology)
The Indian Space Research Organisation (Isro) released images of the Aditya-L1 mission — the space agency’s first attempt to study the Sun. The satellite has reached the Satish Dhawan Space Center (SDSC) in Sriharikota, Andhra Pradesh, for its integration with the launch vehicle, PSLV.
What is the Aditya-L1 mission?
The Aditya-L1 will observe the Sun from a close distance, and try to obtain information about its atmosphere and magnetic field.
It’s equipped with seven payloads (instruments) on board to study the Sun’s corona, solar emissions, solar winds and flares, and Coronal Mass Ejections (CMEs), and will carry out round-the-clock imaging of the Sun.
Why is studying the Sun important?
Every planet, including Earth and the exoplanets beyond the Solar System, evolves — and this evolution is governed by its parent star.
The solar weather and environment affect the weather of the entire system. Variations in this weather can change the orbits of satellites or shorten their lives, interfere with or damage onboard electronics, and cause power blackouts and other disturbances on Earth. Knowledge of solar events is key to understanding space weather.
To learn about and track Earth-directed storms, and to predict their impact, continuous solar observations are needed.
Every storm that emerges from the Sun and heads towards Earth passes through L1, and a satellite placed in the halo orbit around L1 of the Sun-Earth system has the major advantage of continuously viewing the Sun without any occultation/eclipses.
L1 refers to Lagrangian/Lagrange Point 1, one of five points in the orbital plane of the Earth-Sun system. Lagrange Points, named after Italian-French mathematician Josephy-Louis Lagrange, are positions in space where the gravitational forces of a two-body system (like the Sun and the Earth) produce enhanced regions of attraction and repulsion.
These can be used by spacecraft to reduce fuel consumption needed to remain in position. The L1 point is home to the Solar and Heliospheric Observatory Satellite (SOHO), an international collaboration project of NASA and the European Space Agency (ESA).
The L1 point is about 1.5 million km from Earth, or about one-hundredth of the way to the Sun. Aditya L1 will perform continuous observations looking directly at the Sun.
NASA’s Parker Solar Probe, launched in 2018, has already gone far closer — but it will be looking away from the Sun.
The earlier Helios 2 solar probe, a joint venture between NASA and the space agency of erstwhile West Germany, went within 43 million km of the Sun’s surface in 1976.
#upsc #news #headline #ISRO #study #sun #space #technology #india #space #research #technology #aditya #mission #SDSC #satishdhawanspacecenter #srihorikota #andhrapradesh #PSLV #distance #magnetic #corona #solar #planet #weather #earth #repulsion #gravitational #forces #fuel #SOHO #NASA #germany #surface
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CYCLE से CHAND तक🚀
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#ksgias #ksgcurrentaffairs #KsgCurrentConnect #scienceandtechnology #KSGDailyheadlines #Chandrayaan #firstrocketlaunch #historicmoment #DrVikramSarabhai #Thiruvananthapuram #DrAPJAbdulKalam #ISRO #UPSC #CSE #UpscGeneralstudies
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The 640-page NCF, an update on the draft released in April, was developed by a 13-member steering committee led by former ISRO chief K Kasturirangan.
#upsc #news #headline #national #curriculim #NCF #education #indian #school #vision #national #policy #interdisciplinarity #proposals #preparatory #secondary #grades #middlestage #nativetoindia #mathematics #arteducation #physical #enviromental #subjects #period #communication #writingskills #local #global #twolanguages #mandatory #history #journalism #semestersystem #bank #comprehensive #annualsystem #NCERT #development #academicsession #NEP #NCF #kKasturirangan #ISRO #commerce #science #humanities #english #sanskrit
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Today's Headlines - 02 September 2023
Chandrayaan-3 confirms Sulphur in lunar surface
GS Paper - 3 (Space Technology)
The Indian Space Research Organisation (ISRO) said the Pragyan rover's Laser-Induced Breakdown Spectroscope confirmed the presence of sulphur in the lunar surface near the south pole, through the first-ever in-situ measurements. Pragyan is a lunar rover that forms part of Chandrayaan-3, the lunar mission developed by ISRO.
More about discovery
The Laser-Induced Breakdown Spectroscopy (LIBS) instrument onboard Chandrayaan-3 Rover has made the first-ever in-situ measurements on the elemental composition of the lunar surface near the South Pole.
These in-situ measurements confirm the presence of sulphur (S) in the region unambiguously, something that was not feasible by the instruments onboard the orbiters.
LIBS is a scientific technique that analyses the composition of materials by exposing them to intense laser pulses.
A high-energy laser pulse is focused onto the surface of a material, such as a rock or soil. The laser pulse generates extremely hot and localised plasma.
The collected plasma light is spectrally resolved and detected by detectors such as Charge Coupled Devices. Since each element emits a characteristic set of wavelengths of light when it is in a plasma state, the elemental composition of the material is determined.
Chandrayaan-3 successfully executed a soft landing on the moon on 23 August 2023, making India the fourth nation in the world to achieve a successful lunar landing.
India also marked a milestone by becoming the first country to land near the South Pole, an area believed to harbour significant amounts of water ice.
ISRO on 29 August 2023 said preliminary analyses, graphically represented, have unveiled the presence of aluminium (Al), sulphur (S), calcium (Ca), iron (Fe), chromium (Cr), and titanium (Ti) on the lunar surface.
Further measurements have revealed the presence of manganese (Mn), silicon (Si), and oxygen (O). A thorough investigation regarding the presence of hydrogen is underway.
Flashback
The LIBS instrument is developed at the Laboratory for Electro-Optics Systems (LEOS) / ISRO, Bengaluru.
LEOS, situated at Peenya Industrial Estate, Bengaluru, is one of the vital units of ISRO.
It deals with the design, development, and production of attitude sensors for all low Earth orbit (LEO), geostationary Earth orbit (GEO) and interplanetary missions.
It develops and delivers optical systems for remote sensing and meteorological payloads.
#upsc #news #headline #chandryaan #sulphur #lunar #surface #spacetechnology #ISRO #pragyan #laser #spectroscope #southpole #situ #measurment #rover #LIBS #elemental #composition #scientific #technique #materials #laserpulse #rock #soil #plasma #wavelengths #light #chargedevices #softlanding #milestone #waterice #aluminium #calcium #iron #chromium #titanium #silicon #oxygen #manganese #hydrogen #LEOS #GEO #peenya
Chandrayaan-3 confirms Sulphur in lunar surface
GS Paper - 3 (Space Technology)
The Indian Space Research Organisation (ISRO) said the Pragyan rover's Laser-Induced Breakdown Spectroscope confirmed the presence of sulphur in the lunar surface near the south pole, through the first-ever in-situ measurements. Pragyan is a lunar rover that forms part of Chandrayaan-3, the lunar mission developed by ISRO.
More about discovery
The Laser-Induced Breakdown Spectroscopy (LIBS) instrument onboard Chandrayaan-3 Rover has made the first-ever in-situ measurements on the elemental composition of the lunar surface near the South Pole.
These in-situ measurements confirm the presence of sulphur (S) in the region unambiguously, something that was not feasible by the instruments onboard the orbiters.
LIBS is a scientific technique that analyses the composition of materials by exposing them to intense laser pulses.
A high-energy laser pulse is focused onto the surface of a material, such as a rock or soil. The laser pulse generates extremely hot and localised plasma.
The collected plasma light is spectrally resolved and detected by detectors such as Charge Coupled Devices. Since each element emits a characteristic set of wavelengths of light when it is in a plasma state, the elemental composition of the material is determined.
Chandrayaan-3 successfully executed a soft landing on the moon on 23 August 2023, making India the fourth nation in the world to achieve a successful lunar landing.
India also marked a milestone by becoming the first country to land near the South Pole, an area believed to harbour significant amounts of water ice.
ISRO on 29 August 2023 said preliminary analyses, graphically represented, have unveiled the presence of aluminium (Al), sulphur (S), calcium (Ca), iron (Fe), chromium (Cr), and titanium (Ti) on the lunar surface.
Further measurements have revealed the presence of manganese (Mn), silicon (Si), and oxygen (O). A thorough investigation regarding the presence of hydrogen is underway.
Flashback
The LIBS instrument is developed at the Laboratory for Electro-Optics Systems (LEOS) / ISRO, Bengaluru.
LEOS, situated at Peenya Industrial Estate, Bengaluru, is one of the vital units of ISRO.
It deals with the design, development, and production of attitude sensors for all low Earth orbit (LEO), geostationary Earth orbit (GEO) and interplanetary missions.
It develops and delivers optical systems for remote sensing and meteorological payloads.
#upsc #news #headline #chandryaan #sulphur #lunar #surface #spacetechnology #ISRO #pragyan #laser #spectroscope #southpole #situ #measurment #rover #LIBS #elemental #composition #scientific #technique #materials #laserpulse #rock #soil #plasma #wavelengths #light #chargedevices #softlanding #milestone #waterice #aluminium #calcium #iron #chromium #titanium #silicon #oxygen #manganese #hydrogen #LEOS #GEO #peenya
The points can be used as ‘parking spots’ for spacecraft in space to remain in a fixed position with minimal fuel consumption.
They have been named after Italian-French mathematician Joseph-Louis Lagrange (1736-1813), who was the first one to find the positions. So, between the Earth and the Sun, a satellite can occupy any of five Lagrangian points. “Of the five Lagrange points, three are unstable and two are stable. The unstable Lagrange points – labelled L1, L2, and L3 – lie along the line connecting the two large masses. The stable Lagrange points – labelled L4 and L5 – form the apex of two equilateral triangles. The L4 and L5 are also called Trojan points and celestial bodies like asteroids are found here.
#upsc #news #headline #india #first #sun #observatory #launched #space #technology #ISRO #AdityaL1 #firstspace #mission #SatishDhawan #spacecentre #Sriharikota #softland #spacecraft #nearmoon #southpole #polar #satellite #launch #PSLV #workhouse #rocket #chandrayaan #Mangalyaan #boosters #synchronous #orbit #lowerearth #haloorbit #chromosphere #corona #plasma #spectrometer #trojan #point #asteroids
They have been named after Italian-French mathematician Joseph-Louis Lagrange (1736-1813), who was the first one to find the positions. So, between the Earth and the Sun, a satellite can occupy any of five Lagrangian points. “Of the five Lagrange points, three are unstable and two are stable. The unstable Lagrange points – labelled L1, L2, and L3 – lie along the line connecting the two large masses. The stable Lagrange points – labelled L4 and L5 – form the apex of two equilateral triangles. The L4 and L5 are also called Trojan points and celestial bodies like asteroids are found here.
#upsc #news #headline #india #first #sun #observatory #launched #space #technology #ISRO #AdityaL1 #firstspace #mission #SatishDhawan #spacecentre #Sriharikota #softland #spacecraft #nearmoon #southpole #polar #satellite #launch #PSLV #workhouse #rocket #chandrayaan #Mangalyaan #boosters #synchronous #orbit #lowerearth #haloorbit #chromosphere #corona #plasma #spectrometer #trojan #point #asteroids
Voice Behind Countdowns For ISRO's Rocket Launches, N.Valarmathi Passes Away In Chennai.
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Today's Headlines - 08 September 2023
JAXA successful launch lander SLIM on Moon
GS Paper - 3 (Space Technology)
Indian Space Research Organisation (ISRO) congratulated Japan Aerospace Exploration Agency (JAXA) on 7 September 2023 for the successful launch of the Smart Lander for Investigating Moon (SLIM).
More about SLIM
Japan launched its H-IIA rocket on 7 September 2023 carrying the JAXA Moon lander which is scheduled to land on the Moon early next year.
The rocket carried an X-ray telescope called the X-Ray Imaging and Spectroscopy Mission (XRISM), which will study the origins of the universe. XRISM will measure the composition and speed of intergalactic space.
This space mission aims to help scientists to understand celestial object formation and the universe's creation.
This mission was conducted in collaboration with NASA, and it will involve studying light at various wavelengths, temperature assessments, and analysing the shapes and brightness of celestial objects.
Onboard the rocket is JAXA's Smart Lander for Investigating Moon (SLIM) spacecraft also known as the "Moon Sniper" for its precision landing technology.
This launch follows India's recent achievement of becoming the fourth nation to successfully land a spacecraft on the Moon with its Chandrayaan-3 mission. The launch comes two weeks after India successfully landed Vikram lander on the lunar South Pole.
Japan had previously experienced two unsuccessful attempts to land on the Moon. The first resulted in a loss of contact with a lander carried by a NASA rocket, and the second, an attempt by a Japanese start-up, ended in a crash during the lunar descent in April.
#upsc #news #headline #JAXA #launch #lander #SLIM #Moon #space #technology #indian #research #organisation #ISRO #japan #rocket #telescope #spectroscopy #intergalactric #XRISM #formation #spacecraft #moon #sniper #fourthnation #vikramlander #lunar #southpole #india #southpole
JAXA successful launch lander SLIM on Moon
GS Paper - 3 (Space Technology)
Indian Space Research Organisation (ISRO) congratulated Japan Aerospace Exploration Agency (JAXA) on 7 September 2023 for the successful launch of the Smart Lander for Investigating Moon (SLIM).
More about SLIM
Japan launched its H-IIA rocket on 7 September 2023 carrying the JAXA Moon lander which is scheduled to land on the Moon early next year.
The rocket carried an X-ray telescope called the X-Ray Imaging and Spectroscopy Mission (XRISM), which will study the origins of the universe. XRISM will measure the composition and speed of intergalactic space.
This space mission aims to help scientists to understand celestial object formation and the universe's creation.
This mission was conducted in collaboration with NASA, and it will involve studying light at various wavelengths, temperature assessments, and analysing the shapes and brightness of celestial objects.
Onboard the rocket is JAXA's Smart Lander for Investigating Moon (SLIM) spacecraft also known as the "Moon Sniper" for its precision landing technology.
This launch follows India's recent achievement of becoming the fourth nation to successfully land a spacecraft on the Moon with its Chandrayaan-3 mission. The launch comes two weeks after India successfully landed Vikram lander on the lunar South Pole.
Japan had previously experienced two unsuccessful attempts to land on the Moon. The first resulted in a loss of contact with a lander carried by a NASA rocket, and the second, an attempt by a Japanese start-up, ended in a crash during the lunar descent in April.
#upsc #news #headline #JAXA #launch #lander #SLIM #Moon #space #technology #indian #research #organisation #ISRO #japan #rocket #telescope #spectroscopy #intergalactric #XRISM #formation #spacecraft #moon #sniper #fourthnation #vikramlander #lunar #southpole #india #southpole