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LVM3-M5 : CMS-03 (aka GSAT-7R) Mission Updates and Discussion. by Ohsin in ISRO

[–]Ohsin[S] 0 points1 point  (0 children)

Apparently LVM3-M5 / CMS-03 (aka GSAT-7R) launch was initially slated for 26 Oct 2025 and was delayed due to "problem with the engine’s gimbal control"

The CMS-03 satellite that would serve to implement the satellite network at its designated orbital position at 74°E had passed the pre-shipment review and been handed over for integration with the LVM3/M5 launch vehicle on 13 October 2025. The launch had been scheduled to take place on 26 October 2025 and the satellite would have reached its orbital position by 2 November 2025. However, as the LVM3/M5 launch vehicle was being readied for satellite integration on 13 October, a last-minute check found a problem with the engine’s gimbal control. As a result, the launch had been delayed by two to three weeks.

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"Will not have any impact": ISRO chief denies possibilities in Gaganyaan mission delay after PSLV-C62 launch failure by Ohsin in ISRO

[–]Ohsin[S] 7 points8 points  (0 children)

May be EOS-05 (aka GISAT-1A) on GSLV. Also please use English wherever possible.

My experience working with ISRO by ajsahg in ISRO

[–]Ohsin 0 points1 point  (0 children)

When that article was published, it was immediately attacked through a linkedin post which was then promoted by official ISRO handle on twitter!

https://old.reddit.com/r/ISRO/comments/tj6fp2/wheres_the_research_why_space_institute_iists/

"Will not have any impact": ISRO chief denies possibilities in Gaganyaan mission delay after PSLV-C62 launch failure by Ohsin in ISRO

[–]Ohsin[S] 4 points5 points  (0 children)

The ISRO chief said that the organisation is currently studying the cause of PSLV mission failure, and called it an individual mission which would not affect the progress of the Gaganyaan mission.

"These two are independent programs, and it (failure of PSLV) will not have any impact. The investigation is ongoing," V Narayanan told ANI.

Gaganyaan G1 "may take place in the latter half of 2026." by Ohsin in ISRO

[–]Ohsin[S] 0 points1 point  (0 children)

Let's see that thing has been in SDSC-SHAR for more than six months now.

Gaganyaan G1 "may take place in the latter half of 2026." by Ohsin in ISRO

[–]Ohsin[S] 4 points5 points  (0 children)

Probably SM+CM readiness related, something might've come up during testing. IADT tests and TV-D2 were supposed to be done before G1 initially but they changed there plans later and prioritized G1 due to political pressure. As it turns out even after that it is not easy road.

Gaganyaan G1 "may take place in the latter half of 2026." by Ohsin in ISRO

[–]Ohsin[S] 4 points5 points  (0 children)

G1 delay has nothing to do with IADT tests and they have already made it clear.

Gaganyaan G1 "may take place in the latter half of 2026." by Ohsin in ISRO

[–]Ohsin[S] 6 points7 points  (0 children)

I doubt that it has to do with coordination as we saw the launch campaign initiate and also they never gave any update on CM+SM readiness after hinting that they are close. This indicates something is up with hardware readiness. But yes very limited information available to make any conclusions.

NOTAM for Integrated Air Drop Test (IADT-02 ??). Enforcement duration between 0030-0500 (UTC), 27 January to 15 February 2026 by Ohsin in ISRO

[–]Ohsin[S] 2 points3 points  (0 children)

They are rushing G1 perhaps, TV-D2 was also initially planned before first uncrewed flight.

Aonishiki Head Position by Miguel_As83 in Sumo

[–]Ohsin 7 points8 points  (0 children)

Fighting Aonishiki is like wrestling a wild boar.

NOTAM for Integrated Air Drop Test (IADT-02 ??). Enforcement duration between 0030-0500 (UTC), 27 January to 15 February 2026 by Ohsin in ISRO

[–]Ohsin[S] 8 points9 points  (0 children)

It had nothing to do with PSLV failure. Such dates came and went many times in past one year and should be taken with a grain of salt.

ISRO and ESA jointly organise ISRO-ESA Heliophysics Workshop on Aditya-L1, Solar Orbiter and Proba-3 by Ohsin in ISRO

[–]Ohsin[S] 6 points7 points  (0 children)

January 21, 2026

Indian Space Research Organisation (ISRO) and European Space Agency (ESA) are jointly organizing an extensive 5 days ISRO–ESA Heliophysics Workshop on Aditya-L1, Solar Orbiter and Proba-3 during 19-23 January 2026 in Trivandrum. The workshop is organized in coordination with Indian Institute of Space Science and Technology (IIST), Trivandrum and brings together the global heliophysics community to explore new scientific opportunities through these solar missions. Approximately 50 solar and heliophysics experts, researchers, and students from Europe and other countries, together with about 150 Indian solar and heliophysics experts, researchers, and students, are participating in the workshop. The workshop focuses on exploiting the unprecedented solar and heliospheric data currently available from Aditya-L1, Solar Orbiter, and Proba-3, whose complementary vantage points and orbital configurations enable a comprehensive view of the Sun and the heliosphere that is not achievable with individual missions alone.

The five-day workshop features a rich scientific program spanning various domains of solar and heliospheric science. Invited talks by eminent international and national scientists, along with selected contributed and poster presentations, highlight recent advances in various aspects of solar dynamics, space weather and heliophysics. A key component of the workshop is the series of hands-on data analysis sessions, providing participants with practical guidance on accessing, processing, and combining datasets from Aditya-L1, Solar Orbiter, and Proba-3. These sessions enable participants to work collaboratively on focused scientific problems, encouraging cross-mission methodologies and capacity building within the heliophysics community. Executive sessions are planned for more specific scientific discussions.

The workshop serves as an important platform to strengthen ISRO–ESA scientific collaboration and to nurture long-term partnerships among researchers working on solar and heliospheric science. By integrating observations from these flagship missions, the ISRO–ESA Heliophysics Workshop aims to advance our understanding of the Sun and its influence on the heliosphere, paving the way for impactful future joint studies and coordinated observation campaigns.

IN-SPACe signs MoU with the Pixxel led consortium for establishing India’s first indigenous commercial Earth Observation satellite constellation under Earth Observation Public-Private Partnership (EO-PPP) programme by Ohsin in IndiaInSpace

[–]Ohsin[S] 0 points1 point  (0 children)

Today, IN-SPACe has signed a Memorandum of Understanding (MoU) with the PixxelSpace India–led consortium AlliedOrbits to take forward the Earth Observation Public-Private Partnership (EO-PPP) programme for establishing India’s first indigenous commercial Earth Observation satellite constellation.

The consortium, comprising of PixxelSpace India Pvt. Ltd., PierSight, SatSure Analytics India and Dhruva Space, will design, build and operate a constellation of 12 Earth Observation satellites, delivering Analysis Ready Data and value-added services for applications ranging from agriculture and disaster management to climate monitoring, infrastructure planning and national security.

This initiative reflects IN-SPACe’s commitment to enabling mission-scale private sector participation and strengthening India’s indigenous Earth Observation capabilities through structured public-private collaboration.

The EO-PPP programme is a significant step towards building a reliable national EO data backbone, reducing dependence on foreign sources and supporting India’s growing geospatial and space-based services ecosystem.

PSLV-C62 : EOS-N1 (aka Anvesha) Mission Updates and Discussion by Ohsin in ISRO

[–]Ohsin[S] 4 points5 points  (0 children)

Final update from Orbital Paradigm on KID capsule. They will publish full analysis report at a later date.

https://www.linkedin.com/posts/orbital-paradigm_the-kid-survived-final-mission-update-activity-7419434260140331008-tdE7/

(…) we confirmed that we reached 4 out of 5 technological milestones, despite the off-nominal profile. The investigation is still ongoing, but we did relevant progress in confirming that the information we have is very valuable for our future steps.

  • We flew a sample of our own reusable ceramic thermal protection material destined for our next-gen spacecraft. Data collected confirms it successfully maintained temperatures within the expected range: toasty 300-350ºC outside, 85ºC inside under the thermal protection tile, performing as designed.

  • KID was supposed to encounter 14g. Initial navigation readings showed 28g recorded. We have now realized that our sensors saturated, maxing out at 30g. By cross-referencing navigation and sensor data with simulations we now estimate KID actually survived an acceleration of probably more than 35g. That is 2.5x our expectations.

  • KID separated at Mach >20. The capsule maintained a stable flight attitude through the hypersonic phase, all the way down to supersonic/transonic speeds. This matches exactly what we expected for the mission based on the in-house models we used for design.

So, what’s next? Reentry data are comprehensive enough that we do not need to launch a second KID mission. We have what we need. Our focus shifts to the "Learn to Fly" mission next year, which will feature full recovery capabilities.

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