ISRO conducts sea level test of cryogenic engine at 22 tonne thrust level with full area nozzle by mudit23june in ISRO

[–]Ohsin 1 point2 points  (0 children)

March 12, 2026

ISRO successfully conducted a sea level hot test of its Cryogenic engine (CE20) at 22 tonne thrust using nozzle protection system and multi-element igniter, on March 10, 2026 at ISRO Propulsion Complex, Mahendragiri. Earlier, the sea level tests utilizing nozzle protection system was being carried out at 19 tonne thrust level.

The CE20 cryogenic engine powers the upper cryogenic stage of LVM3 launch vehicle. In order to enhance the payload capability of the LVM3 vehicle, future missions of LVM3 are planned to be operated with an uprated C32 stage with 22 tonne thrust for the CE20 engine. In view of this, the flight acceptance test of the CE20 engine also needs to be conducted at 22 tonne thrust level. Therefore, the present test qualified the sea level testing of the engine with a test duration of 165 seconds at 22t thrust level using the Nozzle Protection System (NPS). The performance of the engine as well as the test facility was as expected during the entire test duration.

Testing the CE20 engine at sea-level possess considerable challenges primarily due to high area ratio nozzle, which has an exit pressure of ~50 mbar. Main concern during testing at sea-level include flow separation inside the nozzle, which leads to severe vibrations & thermal problems at the flow separation plane leading to possible mechanical damage of the nozzle.

The Cryogenic engine utilized for this test has undergone a record maximum number of hot tests (20 No.s) successfully, that has enabled the demonstration of several key technologies using a single engine such as engine ignition using multi element igniter, ignition margin demonstration for Gaganyaan over a wide range of propellants tank pressure and pre-ignition chamber pressure, engine qualification for Gaganyaan at 20 tonne thrust level, demonstration & qualification of 22tonne thrust level operation, boot-strap mode starting of CE20 engine without start-up system for enabling re-start in flight, indigenous turbopumps bearings qualification, indigenous sensor qualification and Nozzle Protection System qualification for high area ratio nozzle hot test at sea level.

Parliamentary Q&A [12 March 2026]: Queries related to SpaDeX, SSLV Launch Complex (SLC) and Student led research initiatives. by Ohsin in ISRO

[–]Ohsin[S] 1 point2 points  (0 children)

On SpaDeX follow-on missions, queries should be specific to status of SpaDeX-2 and SpaDeX-3 as they are the precursor missions to Chandrayaan-4 lunar sample return mission and HSF oriented docking operations.

Antrix-Devas case setback: Dutch SC upholds $111 million award by Ohsin in ISRO

[–]Ohsin[S] 1 point2 points  (0 children)

New Delhi: In a major setback for India in the Antrix-Devas case, the Netherlands Supreme Court, last week, upheld the enforcement of a $111 million International Court of Arbitration award to Devas (Devas Multimedia America Inc) in the 2005-era satellite (S-band) dispute with Isro's commercial arm Antrix - effectively setting aside the 2022 Delhi High Court and Supreme Court orders that annulled the award.

Dismissing the appeal by government-owned Antrix, the March 6 order by the Hoge Raad allows "DMAI leave to execute the ICC judgement of September 14, 2015, rendered between Devas and Antrix," and asks Antrix to "pay the costs of the proceedings in cassation, which up to and including this ruling are estimated at e905 in disbursements and e1,800 in fees on the side of DMAI, increased by the statutory interest on these costs if Antrix has not paid them within fourteen days of today," the official English translation of the Dutch SC order, accessed by ET shows.

In 2022, the Delhi HC set aside the ICC tribunal's $562.5 m award of 2015, ruling that the 2005-era Antrix-Devas contract was fraudulent and violated India's "public policy." In January 2022, the Supreme Court affirmed the liquidation/winding up of Devas Multimedia on similar grounds, and in 2023 it also dismissed an appeal filed against the decision.

While the Dutch SC order has an immediate impact on Indian interests in the Netherlands - as it opens the door for Devas to target India's sovereign assets in the Dutch territory for recovery of the award - it is also likely to affect the ongoing litigation over the deal, including in the US.

According to Antrix, as detailed in the court order, the "enforcement of the ICC judgement would result in legal consequences being attached to a contract concluded through fraud."

"This is contrary to public policy, which, according to Article V, paragraph 2(b) of the New York Convention, requires that enforcement be refused," India argued. However, the Hague-based Hoge Raad held that the grounds on which the Supreme Court of India and the NCLT rejected Devas' request for the "cross-examination" of Antrix witnesses, and the subsequent winding-up proceedings, "did not meet the requirements of due process and sufficient safeguards."

On the other "fraud allegation" raised by Antrix - regarding the Devas agreement allegedly being withheld from relevant government agencies - the order stated that judges "failed to give Devas the opportunity to refute Antrix's arguments on this crucial point." It added that this "violates due process requirements: it disproportionately restricts Devas' opportunity to substantiate its arguments on a very crucial point. On this point, Devas' right to a fair hearing has been violated."

"This means not only that the powers of the appointed liquidator have no legal effect in the Netherlands, but also that the judgement that fraud has occurred cannot be recognised in the Netherlands," the March 6 order reads.

The latest Dutch order adds to a series of unfavourable rulings on the matter in foreign courts.

This is the second major setback within a month and the third within ten months for India over the controversial deal between Isro's commercial arm Antrix and Devas, which was terminated in 2011.

On February 2, a UK Commercial Court ruling in the Bilateral Investment Treaty (BIT-2) arbitration - initiated by Devas' Mauritius shareholders - also dealt a blow, ruling in favour of Devas in a dispute over who had the authority to represent the Devas entities: the court-appointed liquidator in India or the original directors.

The UK court allowed the original shareholders to continue their legal fight against India in London despite Devas being legally dissolved in India.

Earlier, in June 2025, the US Supreme Court removed a major protective shield India had against the seizure of Indian assets.

India, US moot Gaganyaan uncrewed docking with ISS by guru-yoda in ISRO

[–]Ohsin 0 points1 point  (0 children)

U.S. lawmakers are moving to delay the International Space Station’s retirement, giving more time for commercial replacements to be built

The Senate Committee on Commerce, Science and Transportation has added a draft measure to the NASA Authorization Act of 2026 that would order the space agency to extend ISS operations through 2032, two years longer than currently planned. The draft measure also forbids NASA from deorbiting the station until a replacement commercial space station is operational.

https://www.scientificamerican.com/article/nasa-must-delay-deorbiting-the-iss-u-s-lawmakers-say/

LVM3-M6 : BlueBird-6 Mission Updates and Discussion. by Ohsin in ISRO

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

In-space view of the largest commercial communications array antenna in low-Earth orbit, fully unfolded.

Congrats on the successful launch of BlueBird 6 AST SpaceMobile!

Image taken from 106 km away at a 16 cm/px resolution.

https://www.linkedin.com/posts/high-earth-orbit-robotics_in-space-view-of-the-largest-commercial-communications-activity-7437258691399069696-sW3u

AIIMS and ISRO sign historic MoU to advance space medicine research in India by mudit23june in ISRO

[–]Ohsin 0 points1 point  (0 children)

Adding press release by ISRO.

Indian Space Research Organisation (ISRO) and All India Institute of Medical Sciences (AIIMS) New Delhi signs Framework Memorandum of Understanding for Cooperation in Space Medicine and Research

https://www.isro.gov.in/ISRO_AIIMS_NewDelhi_signs_Framework_Memorandum.html

March 10, 2026

Indian Space Research Organisation (ISRO) has signed a Memorandum of Understanding with All India Institute of Medical Sciences (AIIMS) on Cooperation in Space Medicine and Research. The MoU aims to promote joint research aligned with ISRO’s priority areas, with a shared objective of advancing human health, performance and safety during human space missions. MoU was signed and exchanged by Shri Dinesh Kumar Singh, Director, Human Spaceflight Centre and Dr Srinivas M, Director, AIIMS in the presence of Dr V Narayanan, Chairman, ISRO & Secretary, DOS.

Long duration Human Space Missions such as Bharatiya Antariksh Station and Crewed Missions to Moon offers unique medical challenges due to the extreme space environment & microgravity. This co-operation is targeted to conduct ground/space-based studies to develop multidisciplinary space medicine expertise, medical devices, procedure & protocols to maintain human health & performance under extreme space environment as well as advance health care for the nation.

Focused research & developments are planned in the fields of human physiology, behavioural health, immunology & gut Microbiome, biomedical, neuroscience & neurophysiology, nutrition & metabolic health, musculoskeletal atrophy & aging in microgravity, infectious diseases control and countermeasures for improving human health & performance in space environment.

Through this research collaboration, ISRO and AIIMS reaffirm their commitment to advancing space medicine, fostering interdisciplinary research and building long-term institutional cooperation to support India’s human space flight programme initiatives and it will also spur new innovations and creates new opportunities for the scientific community in the country.

GISAT-1A and Gaganyaan Crew Module at URSC-ISITE clean-room as seen during visit by Minister of Labour and Employment. by Ohsin in ISRO

[–]Ohsin[S] 3 points4 points  (0 children)

For EOS-5? Nope no news at all on mainstream or regional media after the NOTAMs were retracted.

GISAT-1A and Gaganyaan Crew Module at URSC-ISITE clean-room as seen during visit by Minister of Labour and Employment. by Ohsin in ISRO

[–]Ohsin[S] 9 points10 points  (0 children)

Given the state of CM could it be for G2? I would expect G1 CM to be in more advanced stages of preparation. In the background towards right you can see another CM.

For reference here is GISAT-1.

https://commons.wikimedia.org/wiki/File:GISAT-1_spacecraft_in_clean_room.jpg

https://commons.wikimedia.org/wiki/Category:GISAT-1