Questions tagged [isro]
Questions about Indian Space Research Organization (ISRO), its missions, research projects, and other activities financed, organized, planned, managed, or otherwise arranged under this organization's umbrella.
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Might ISRO's 2018-004 launch be at least a technical violation of the Outer Space Treaty by India?
The IEEE News article FCC Accuses Stealthy Startup of Launching Rogue Satellites as well as the question What checks are supposed to be carried out to prevent illegal satellite launches? address the ...
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Launching sounding rockets from the magnetic equator (ISRO's Thumba)
The Thumba Equatorial Rocket Launching Station is operated by ISRO for launching sounding rockets because magnetic equator passes through it. Equator gives additional velocity, But what advantage ...
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How was it difficult for the PSLV to launch a record of 104 satellites?
Last year, ISRO launched 104 satellites successfully into orbit. People praised it as an 'astounding achievement'.
Besides a more complicated-than-usual satellite deployment, what truly was ...
user20905
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Is there any central world organization which authenticate achievement of various space agencies missions?
Recently Isro's mars orbitor has completed 4 years in mars orbit I guess. I am proud of that as I am Indian. but as curious person I still wonder
for proofs of that mars orbitor is still in mars ...
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Is ISRO Making a Methane Engine?
I'd read some stray comment on the internet claiming that ISRO is working on a methane-LOX engine, just as a technology demonstrator. Is this true?
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How have the 'gift' transponders on ISRO's GSAT-9 been used by other countries?
edit: It's been seven months. close to two years close to two years and seven months over three years now, have any of the 'gift' transponders been used or at least tested yet by the gift recipient ...
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What is the magnetic equatorial anomaly and how is GAGAN unique in its ability to compensate?
ISRO's GPS Aided GEO Augmented Navigation system (GAGAN) (see ISRO and Wikipedia) is the first GPS augmentation system designed to deal with ionospheric effects near the geomagnetic equator.
From ...
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Which of these configurations is preferred and why?
I came across an article with the following infographic:
infographic source
The GSLV rockets use solid/liquid engines as core stage and cryogenic engine as upper stage while the Ariane V rocket has ...
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How have/how will Indian ground stations be used for comms or tracking of deep space spacecraft?
I have a few data points, but not the big picture.
19-10-2016, the Giant Metre Wave Telescope was used to monitor the doppler shift of a beacon signal from the Schiaparelli spacecraft as it descended ...
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ISRO's space plane on top of of a rocket - how unstable was it?
ISRO's space plane was launched on top of a rocket into a sub-orbital trajectory, with separation from the lift vehicle around 45 km and a maximum altitude of about 65 km, based on an analysis of the ...
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What is happening to the rocket in this ISRO photo - what are these huge platforms?
The News Nation (India) article ISRO PSLV-C37 launch: Why it is crucial for India? Everything you should know about the 104 satellites mission includes this photo, with the caption "ISRO's biggest ...
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ISRO's PSLV-C37 with 104 satellites - after 56 hours only six TLEs, which factor is greatest challenge?
It's been 24 hours 56 hours since ISRO's PSLV-C37 launched from Satish Dhawan Space Centre (SRI) at 09:28 local time (03:58 UTC).
I see satcat numbers and object names for 105 total objects; ...
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Why is China still not invited to the ISS? (Or, why do certain countries not get invited/rejected to work on the ISS?)
I understand that U.S. Congress passed a law in 2011 barring space agency collaboration with CNSA because of concerns over "national security".
I also get that China blew-up one of their own ...
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What does CLG INIT mean?
During India's PSLV-C35 launch on 26 September 2016, mission control's launch sequence events (stage separations, stage ignitions, etc.) included 'CLG INIT'. What does it mean?
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Why do some rockets not ignite all their engines during liftoff? (GSLV MK3 LV)
As I understand it, a rocket should produce its maximum thrust on liftoff. As time progresses, the mass of the rocket will decrease, but since the engines produce the same thrust, the rocket will ...
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GSLV MK2 vs Falcon 9 - Reasons for Huge performance difference
Yesterday ISRO operated the GSLV MK2 launch vehicle, which is a medium lift launch vehicle with a capability to lift 5 tonnes to LEO.
I just compared Falcon 9 with GSLV MK2. Falcon 9 capability to ...
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How can ISRO's RISAT satellites search for the lost IAF AN-32?
The Indian Air Force has lost contact with AN-32 (transport aircraft) on a mission. ISRO is going to deploy RISAT to search for the missing plane as the search area has widened. How will such ...
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Does ISRO's RLV have a future manned spacecraft in mind?
The Indian Space Research Organization (ISRO) is currently testing a Reusable Launch Vehicle (RLV) in a technology demonstration program. Does this program have a future manned vehicle in mind? Or is ...
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What is the current status of India's RLV craft? [closed]
What is their underlying technology, and is it going to be cheaper like their Mars orbital mission?
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What have been India's Mars mission's benefits to science?
From Wikipedia, it seems the objective is to gain experience in Mars missions and taking some scientific observations. My question is, did ISRO scientists discover anything new from their observations?...
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Utilization of data from satellites mantained by India
What are the prerequisites to utilize the data from 'astrosat' or 'mangalyaan'. My aim is to check how useful the data generated by an Indian scopes are? I could not make any sense in the catalogs.
quarkonium
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How are these 3D terrain models of Mars generated?
Recently ISRO released 3D terrain models of Mars' Ophir Chasma terrain as shown here. LiDAR is one instrument which helps in generating such 3D models. ISRO's MARS orbiter sensor payload does not have ...
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Indian Manned Flight to 'Near Space' by ISRO?
I recently read about Google exec Alan Eustace's record skydiving jump from a 'near space' altitude of 135,890 feet and was surprised to learn that the balloon which lofted him up to that height was ...
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Methane detection on Mars by MOM?
It's been almost a month since the ISRO's Mars Orbiter Mission (MOM) was put into orbit. Though it doesn't carry much scientific payload, the one most talked about is the methane sensor, which even ...
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Why is MOM in a very retrograde orbit?
A recent question/discussion on this site brought out the interesting fact that most probes around Mars are in Sun synchronous near polar orbit.
The ISRO web-site for the Mars Orbiter Mission writes ...
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What will MOM do when Earth isn't looking?
A quick follow-up to Is each instrument on ISRO MOM independently in 24x7 contact with Earth?
Every 26 months Sol interposes to occult Earth from the gaze of the Warlord. The last time this occurred ...
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Is each instrument on ISRO MOM independently in 24x7 contact with Earth?
The ISRO Mars Orbiter Mission web-site writes to say
Mars Orbiter Mission carries five scientific payloads to observe Martian surface, atmosphere and exosphere extending up to 80,000 km for a ...
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Cheap cost of Mangalyaan
It has been reported that India's Mars mission, Mangalyaan, cost only \$74 million compared to \$671 million cost of Maven. What is the reason for this difference in cost? Are there any significant ...
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Is there any active collision avoidance aboard the spacecraft in Mars' orbit?
Wikipedia writes to say
As of 2009, about 19,000 pieces of debris larger than 5 cm (2.0 in) are tracked,[1] with another 300,000 pieces smaller than 1 cm below 200 km altitude
Control collision ...
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ISRO's Mars Orbiter Mission - LAM vs Attitude thrusters reliability
ISRO expressed concerns on restarting the Liquid Apogee Motor (LAM) for Mars Orbit Insertion (MOI) after a long coasting period of its Mars Orbiter Mission (MOM). ISRO has redesigned the LAM plumbing ...
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Is it possible to know the position of MOM?
How far has the MOM (Mars Orbiter Mission) travelled, and
Where is it now?
It is scheduled to reach Mars orbit on September 1 this year.
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Why is there a "coasting" phase in some space launches?
During the PSLV (India's Polar Satellite Launch Vehicle) C24 launch on 4 April 2014, once stage 3 (PS3) had burned out, it wasn't immediately jettisoned, but instead there was a coasting phase for ...
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What specifications is the ISRO crew module fabricated to?
http://www.thehindubusinessline.com/news/science/human-space-flight-prog-hal-hands-over-crew-module-assembly-to-isro/article5685195.ece
writes to say
Hindustan Aeronautics Ltd (HAL) has handed ...
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Cause of ISRO MOM's LAM shutdown during the 4th orbit raising manoeuvre
The 4th orbit raising manoeuvre of ISRO's Mars probe (MOM or Mars Orbiter Mission, informally called Mangalyaan) did not go as planned, as the LAM (Liquid Apogee Motor) shut down prematurely. ...
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Does ISRO's Cryogenic Upper Stage have restart capability?
Does the CUS of ISRO have restart capability?
If so why was it not tested in the recent GSLV-D5 flight? Maybe by restarting the stage after S/C release?
What enhancements are required to make a ...
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Could India Send a Lander to Mars?
India has recently sent a small spacecraft to Mars, as a technology demonstration mission. It has also subsequently successfully demonstrated its much-delayed cryogenic upper stage engine with the ...
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How large is the Earth's gravitational Sphere of Influence and how can it be calculated?
There was a recent update on ISRO's Mars Orbiter Mission's (MOM) Facebook page that it has crossed the Earth's Sphere of Influence (SOI):
MOM moves on!
MOM is going to cruise out of the sphere ...
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What is "forward rotation" of a spacecraft?
According to ISRO's Mars Orbiter Mission (MOM):
Forward rotation of the spacecraft
has been completed successfully.
What kind of maneuver is that and what is its purpose?
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What was Chandrayaan-1's ground track?
I was looking for a map of Chandrayaan-1's ground track, but I wasn't able to find one. I'm looking for something like this:
&...
user12
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Why did ISRO require additional tracking ships in the South Pacific for its MOM mission?
ISRO (Indian Space Research Organisation) so far never before used additional marine vessels to help track their launch vehicles, as an extension to the Indian Deep Space Network (IDSN). So why did it ...
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Why are orbit raising maneuvers for Mangalyaan done in the early hours?
I was reading this news article, and it was mentioned that orbit raising is done in early hours. In all the five orbit raising operations, they are raising them only during night. What could be the ...
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What language does ISRO use for radio communication?
Wikipedia lists both Hindi and English as the official languages of ISRO. But what language does ISRO use for radio communication? Say they launch a manned mission, which language would they use to ...
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Is there any plan for ISRO to reach Venus?
After successfully completing the placement of the Mangalyaan into orbit, is there any plan for ISRO to launch a spacecraft to Venus ?
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Why should space probes have to orbit the Earth before being launched at other planets?
I'm curious to know why any satellites that need to be sent to other planets should be moving around the Earth rather than directly going towards their destination? Today, India launched one satellite ...
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Was the ISRO Mars mission really scaled down?
This news-report writes to say
India’s bid to explore Mars will be a scaled down affair with the space agency flying experimental payload of less than 15 kg as against 25kg planned originally
Was ...
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What feasibility studies are being conducted by ISRO concerning manned flight?
I was reading this article (sorry for the terrible formatting), and I noticed this statement made by an ISRO official:
Nair said no decision has yet been made about sending Indian astronauts into ...
user12
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Approximately how much fuel will ISRO Mars Orbiter have available when it enter Mars' orbit?
मंगलयान (Maṅgalayāna) is due to launch on November 05, 2013 AD of the Gregorian Calendar at 1436H (GMT+0530). Wikipedia writes to say
The November 2013 launch will place the Mars Orbiter Mission ...
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Does India have plans to explore Mars after Mangalyaan?
The Indian Space Research Organisation (ISRO) is launching a Polar Satellite Launch Vehicle (PSLV) this Tuesday (5 Nov 2013) from Satish Dhawan Space Center, Sriharikota, India, flying on the PSLV-C25 ...
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Changes made to ISRO GSLV-D5's CUS and FBTP since GSLV-D3's LH2/LOX CUS failure to sustain ignition?
The launch of the ISRO GSLV-D5 launching India's GSAT 14 advanced communications satellite (weighing 1,980 kg) is slated for 19th of August, 2013, flying in the GSLV Mk.2 configuration with an Indian-...
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How many people does ISRO employ?
The Indian Space Research Organization (ISRO) is the space program of the Republic of India. How many people are employed by ISRO?
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