Archived PDF - https://archive.org/details/chandrayaan-3-libs-sensor-pre-flight-characterization-inflight-operations-and-pr

IEEE link - https://ieeexplore.ieee.org/document/10778223

Hello everyone, Can anyone working in ISRO or otherwise can tell that what went wrong with this process the notification and form filling was in july 2023 and exam held on 7th January almost after 6 months. Then interviews happened in aug-sept 2023 ( after 7 months ) and there is no sign of results.

I am 2021 passout and this is the first recruitment for which I am eligible because the last one was held in 2019. And after they reduced the max age limit to 27 this may be my recruitment considering the speed with which this happening.

Don't they think this a bit extreme or unfair to a guy that have only one chance in a lifetime to get into ISRO.

Jee gives max 2 chances And UPSC gives 6.

Queries in Loksabha on 04 December 2024.

https://sansad.in/ls/questions/questions-and-answers

Q.No. 1503 PDF : On reasons behind delay of NASA-ISRO Synthetic Aperture Radar (NISAR) Mission

NASA-ISRO Synthetic Aperture RADAR (NISAR) is an Earth science mission being jointly developed by NASA and ISRO under a collaborative agreement.

The NISAR was earlier slated for launch in the first-half of 2024. However, during the assembly, integration & testing phase, NASA experts determined that the 12-meter Radar Antenna Reflector need some corrective actions and has to be taken to USA for rectification.

Subsequently, the Radar Antenna Reflector, was delivered to ISRO by NASA in October 2024, which is re-integrated with the satellite and currently undergoing necessary tests. Also, due to the eclipse season, the conditions are not conducive for deployment of NISAR’s boom and the Radar Antenna Reflector. In view of the afore-mentioned factors, NISAR is now likely to be launched during March 2025

Q.No. 1446 PDF : On steps taken for sustainable use of space.

Recognising the growing importance of Space Situational Awareness (SSA) for space sustainability, ISRO System for Safe and sustainable Space Operations Management (IS4OM) has been established to focus all efforts related to spaceflight safety and debris mitigation and for dealing with the emerging challenges in operating in a congested space environment. Network for Space object TRacking and Analysis (NETRA) has been approved by GOI for SSA capacity building.

ISRO adheres to the internationally accepted space debris mitigation guidelines recommended by UN -COPOUS and InterAgency Space Debris Coordination Committee (IADC) to the maximum possible extent.

For all Indian launch vehicles, Collision Avoidance Analysis (COLA) is performed to select collision threat-free lift-off time within the launch window. Continual assessments of any close approach risk to ISRO’s operational satellites are carried out and Collision Avoidance Manoeuvres (CAM) are performed as and when needed. In case the object posing close approach risk is another active satellite, the required coordination is carried out with the owner/operator so that only one of the satellites performs the CAM. Continual efforts to improve the operational methodologies for close approach assessment are pursued to adapt to the challenges posed by the surging space traffic, apart from modelling on-orbit break-up events and prediction of atmospheric re-entries of space objects etc.

ISRO contributes substantially to shaping the pertinent guidelines and recommendations for sustainable use of space as an active member of various international agencies dealing with safety and sustainability of outer space activities, such as IADC, IAA (International Academy of Astronautics, ISO (International Organization for Standardization), IAF (International Astronautical Federation), UN Long Term Sustainability Working Group.

The Indian Space Policy places significant importance in space debris mitigation requirements and SSA capacity building.

The recently unveiled Debris Free Space Mission (DFSM) initiative is also spearheaded by ISRO with an aim to achieve debris-free space missions by all Indian space actors, both governmental and non-governmental, by 2030. The initiative aligns with global efforts for space sustainability, positioning India as a nation prioritizing safety, security, and sustainability in outer space activities.

Q.No. 1544 PDF : About 'Startups in Space Sector'

Q.No. 1531 PDF : On benefits of space programme to state of Andhra Pradesh

For some days, the media is projecting the proba 3 mission as ISRO proba 3 , using terms like "isro makes history" and "proud moment for India" and trying to take credit out of esa on proba 3. It's so saddening to see the Indian media overcrediting isro for just providing launch services as if it's the first time they are doing so. ISRO has a big achievement list to boast off and the media doing this is certainly disrespecting ISROs achievements. How do you guys see this?

u/ohsin

The "current" launch schedule has not been updated for a very long time. Please update it or link to the official "Launch Missions" page of ISRO.

Thank you.

PSLV-C59/PROBA-3 launched as scheduled at 1034(UTC)/1604(IST), 05 December 2024 from First Launch Pad of SDSC-SHAR.

• Launch Countdown
• Expected Flight Profile from press-kit.
• Actual flight events (To be added post-launch if available)

Live webcast: (Links will be added as they become available)

• ISRO Official Stream
• ESA Web TV One
• DD National
• DD Saptagiri
• DD Tamil

PSLV-C59/PROBA-3 Mission Page|PSLV-C59/PROBA-3 Gallery|PSLV-C59/PROBA-3 Press kit(PDF)| ESA PROBA-3 Press kit(PDF) ---|---|---|---|---|---

Some highlights:

• Primary payload: PROBA-3 (~550 kg) by the European Space Agency to study the Sun with a pair of formation flying satellites.
• Mission duration: 18 min. 42.48 sec. (s/c separation)
• Target Orbit : 60530×600 km, Inclination = 59.0°
• Launch Azimuth: 134°
• PSLV configuration : XL (Extended length strapons)
• 61st flight of PSLV

Updates:

Primary Payload:

PROBA-3 (550 kg) : A dual satellite technology demonstration mission by ESA to study the Sun consisting of an Occulter Spacecraft (OSC) (~240 kg) and a Coronagraph Spacecraft (CSC) (~310 kg). Both 3-axis stabilized mini-satellites will precisely fly in formation within a millimetre accuracy to function as occulter and coronagraph elements of a telescope.

• Payloads:

  • ASPIICS coronagraph
  • Digital Absolute Radiometer (DARA)
  • high-fidelity 3D Energetic Electron Spectrometer (3DEES)

• Attitude Control:

  • 4 reaction wheels (CSC/OSC)
  • 8×1N mono propellant thrusters (CSC)
  • 12×10mN Cold Gas thrusters (OSC)

• Orbit: A×P : 60530 × 600 km, Inclination : 59°, AoP : 188°

• Mission life: 2 years

Note : PSLV with launch serial C59 was earlier assigned to ANWESHA (or ANVESHA) and PROBA-3 was earlier assigned to PSLV with C62 launch serial. Before this ANWESHA was assigned to PSLV-C58 but later XPoSat replaced it.

Hi everyone, has anyone received the acceptance mail for the vssc internship? I opted for dec 20th to jan 16th slot and wanted to check if the announcement for this batch have started.

5 years ago I mentioned that Chandrayaan2 Rover might be still intact on the Moon's surface and my assumption might be just about right as there is new evidence from OHRC images of the Chandrayaan2 crash site taken on Sep6th/Sep7th that was published by ISRO

Chandrayaan2 landing site before and after landing

• Left image taken around Sep6th 12:46 UTC
• Right image taken around Sep6th 22:41 UTC (4 AM IST) ( incidence angle was around 84 deg!)
• Long shadow might of the rover due to it's solar panels?

Solar panels would have bolted out due to the impact!

https://preview.redd.it/t129q9u3o84e1.png?width=1648&format=png&auto=webp&s=608457d093d232442420e29ad7973f47531375ae

Chandrayaan2 landing site and Chandrayaan3 Landing site

1. Both images have similar incidence angle (around 77-78 degrees)
2. Left side image is from LRO taken on Jan4th, 2020 (M1332771378LC)
3. Right side image is from OHRC taken on Apr25th, 2024 ( Chandrayaan2 OHRC image)

https://preview.redd.it/nt8gcxdmo84e1.png?width=1568&format=png&auto=webp&s=9ac88e52317d40a52412446e7182cef429a0c7e8

Debris all around the Chandrayaan2 Landing site

3rd pic is North of the Landing site near to where I found a tiny white speck!

https://preview.redd.it/1ptugypzo84e1.png?width=1351&format=png&auto=webp&s=bba4141625c058d897a8725b0c91cd9eb7a809a7

https://preview.redd.it/7lolgwx0p84e1.png?width=1135&format=png&auto=webp&s=f5827e7bd97c1b2ac6699381aabd041aa2319073

https://preview.redd.it/78brfpk1p84e1.png?width=640&format=png&auto=webp&s=a28f6e5f6cba461fbc766cccedde478df7858fae

I'm referring to the following:

• Putting info in wrong sections. Eg - Talking about ESTRACK support and the pinging of the mini retroreflector in the History section; Talking about the C25 stage re-entering the earth in the Launch section.
• Confusing "altitude" with "attitude". Eg - In the Vikram lander section.
• In the Surface Operations section, no surface operations of the rover are mentioned.
• The section mentioning the return of the propulsion module to earth orbit seems copy pasted from the ISRO website.

I am asking as to what led to a dip in the quality of the article. Any ideas?

Queries in Loksabha on 27 November 2024.

https://sansad.in/ls/questions/questions-and-answers

Q.No. 273 PDF : On ₹1000 crore venture capital fund under IN-SPACE.

Q.No. 299 PDF : On upcoming space mission and status of Gaganyaan.

Q.No. 460 PDF : On Mars analogue mission in Tibet region by ISRO.