Test Vehicle Abort Mission-1 Explained

Test Vehicle Abort Mission-1
Names List:Test Vehicle Abort Mission-1
TV-D1
Programme:IHSP
Previous Mission:PAT
Next Mission:TV-D2
Mission Type:In-flight abort test
Operator:ISRO
Manufacturer:Hindustan Aeronautics Limited
Mission Duration:
(final)
Launch Mass:44 Tons
Landing Mass:4.5 tons
Dry Mass:17 tons
Dimensions:Length: 34.954 m Diameter: 2.1 m (stage), 4.05 m (CES)
Spacecraft Type:Gaganyaan
Launch Date:21 October 2023, 04:30 UTC (10:00 IST)
Launch Rocket:Gaganyaan Abort Test Booster (modified GSLV L40 stage)
Launch Site:First Launch Pad Satish Dhawan Space Centre
Landing Date:21 October 2023, 04:45 UTC (10:15 IST)
Landing Site:Bay of Bengal
Insignia:File:Gaganyaan TV-D1 patch.jpg
Insignia Caption:Test Vehicle Abort Mission-1 Patch
Insignia Size:250px

Test Vehicle Abort Mission-1 (TV-D1) was a high altitude abort test performed as part of the Gaganyaan program, initially set to be held on 21 October 2023 at around 02:30 UTC (08:00 IST).[1] [2] [3] Liftoff was delayed to 03:15 UTC due to weather issues, and five seconds before launch it was put on hold by the on-board computer due to an engine anomaly, as reported in ISRO's mission livestream. The launch occurred at 04:30 UTC, and the crew module successfully separated from the launch vehicle.[4] The crew module was successfully recovered by the Indian Navy.[5] India is the fourth country, after Russia, the United States, and China, to successfully test this technology.[6]

Background

In April 2022, it was proposed that both demonstration missions should have a depressurized crew module.[7] On 10 August 2022 ISRO performed a successful static test of the Crew Escape System (CES).[8] The crew module fairing and the high altitude abort engine were delivered by Hindustan Aeronautics Limited on 18 August 2022.[9] In December 2022, the structural qualification test for the crew module fairing with grid fins was successfully completed for the TV-D1 configuration.[10] In August 2023, the rocket was ready at Sriharikota and the test was scheduled for late September.[11] TV-D1 is the first development flight from the Gaganyaan program. Gaganyaan-1, the first orbital test flight, is planned to take place in 2024.[12] The crew module used for TV-D1, was an unpressurised version that had completed its integration testing. This unpressurised module was required to have an overall size and mass of an actual Gaganyaan crew module, and housed all systems required for deceleration and recovery, including a complete set of parachutes, recovery aids actuation systems, and pyros. The avionics systems operate in a dual-redundant mode for navigation, sequencing, telemetry, instrumentation, and power. The crew module in this mission was extensively instrumented to capture the flight data for evaluation of the performance of various systems. The crew module was planned to be recovered after touchdown in the Bay of Bengal using a dedicated vessel and diving team from the Indian Navy.[13]

With a rocket based upon the GSLV L40 stage,[14] TV-D1 was to be launched up to 11 km above sea level, where an in-flight abort scenario would be initiated. The capsule was expected to then continue another 4–5 km. The mission aimed to test the CES's separation from the rocket, ability to maintain a trajectory leading to a safe distance, and eventual parachute deployment.[15]

Mission objectives

Results

The launch occurred at 04:30 UTC, and was tracked by ground teams at Sriharikota. The crew module successfully separated from the launch vehicle and was recovered by the INS Shakthi in the Bay of Bengal despite rough seas.[16]

See also

Bibliography

Notes and References

  1. Web site: First Crew Module for Gaganyaan test flight takes shape . 8 October 2023 . www.isro.gov.in . 7 October 2023 . https://web.archive.org/web/20231007054126/https://www.isro.gov.in/First_Crew_Module_Gaganyaan_test_flight_TV_D1.html . live .
  2. Web site: TV-D1 Flight Test . 21 October 2023 . X (formerly Twitter) . en . 20 October 2023 . https://web.archive.org/web/20231020033840/https://twitter.com/isro/status/1714208678675628360?s=20 . live .
  3. News: 28 April 2022 . First Gaganyaan uncrewed module to be injected in 170x408km orbit; indicates human spaceflight profile . The Times of India . 21 October 2023 . 0971-8257 . 2 March 2023 . https://web.archive.org/web/20230302195137/https://timesofindia.indiatimes.com/india/first-gaganyaan-uncrewed-module-to-be-injected-in-170x408km-orbit-indicates-human-spaceflight-profile/articleshow/91159842.cms . live .
  4. Web site: 21 October 2023 . Gaganyaan mission test flight live updates: Flight Test Vehicle Abort Mission-1 has been put on hold . 21 October 2023 . The Times of India . 20 October 2023 . https://web.archive.org/web/20231020234813/https://timesofindia.indiatimes.com/india/gaganyaan-mission-launch-live-updates-isro-tv-d1-first-test-flight-to-take-astronauts-into-space-in-2025/liveblog/104594406.cms . live .
  5. Web site: Multiple cams& drones, multiple ships and small boats... . 21 October 2023 . X (formerly Twitter) . en . 22 October 2023 . https://web.archive.org/web/20231022222313/https://twitter.com/sdhrthmp/status/1715596649710616608 . live .
  6. News: 18 May 2022 . Mission Gaganyaan: Better safe than starry . The Economic Times . 21 October 2023 . 0013-0389 . 2 March 2023 . https://web.archive.org/web/20230302194310/https://economictimes.indiatimes.com/opinion/et-commentary/mission-gaganyaan-better-safe-than-starry/articleshow/91648613.cms . live .
  7. News: 29 April 2022 . Gaganyaan: First uncrewed mission to have unpressurised crew module . The Times of India . 21 October 2023 . 0971-8257 . 11 October 2023 . https://web.archive.org/web/20231011222632/https://timesofindia.indiatimes.com/india/gaganyaan-first-uncrewed-mission-to-have-unpressurised-crew-module/articleshow/91188895.cms . live .
  8. News: 11 August 2022 . Gaganyaan: Low Altitude Escape motor of crew escape system tested . The Times of India . 21 October 2023 . 0971-8257 . 11 October 2023 . https://web.archive.org/web/20231011002711/https://timesofindia.indiatimes.com/india/gaganyaan-important-crew-escape-system-test-complete/articleshow/93487636.cms . live .
  9. News: 18 August 2022 . Gaganyaan: Isro receives key hardware from HAL . The Times of India . 21 October 2023 . 0971-8257 . 10 October 2023 . https://web.archive.org/web/20231010182230/https://timesofindia.indiatimes.com/india/gaganyaan-isro-receives-key-hardware-from-hal/articleshow/93641028.cms . live .
  10. Web site: 10 January 2023 . Government of India. Monthly Summary of the Department of Space for the month of December, 2022– reg. . live . https://web.archive.org/web/20230111192928/https://www.isro.gov.in/media_isro/pdf/Monthly_summary/Monthly_Summary_Dec_2022.pdf . 11 January 2023 . 17 January 2023 . Government of India Department of Space.
  11. Web site: Chandrayaan-3 on Moon: What's next for Isro? . 21 October 2023 . India Today . en . 23 September 2023 . https://web.archive.org/web/20230923145403/https://www.indiatoday.in/science/chandrayaan-3/story/chandrayaan-3-moon-landing-success-update-what-next-for-isro-2426001-2023-08-24 . live .
  12. Web site: Livemint . 16 March 2023 . Govt shares an update on Gaganyaan, first abort mission likely in two months . 21 October 2023 . mint . en . 10 October 2023 . https://web.archive.org/web/20231010110348/https://www.livemint.com/news/india/govt-shares-an-update-on-gaganyaan-first-abort-mission-likely-in-two-months-11678953847112.html . live .
  13. Web site: First Crew Module for Gaganyaan test flight takes shape . 19 October 2023 . www.isro.gov.in . 20 October 2023 . https://web.archive.org/web/20231020113658/https://www.isro.gov.in/First_Crew_Module_Gaganyaan_test_flight_TV_D1.html . live .
  14. News: 2 February 2022 . 2 key Gaganyaan crew abort tests, Aditya top priority . The Times of India . 21 October 2023 . 0971-8257 . 18 February 2022 . https://web.archive.org/web/20220218203122/https://timesofindia.indiatimes.com/india/2-key-gaganyaan-crew-abort-tests-aditya-top-priority/articleshow/89305880.cms . live .
  15. News: 20 July 2022 . Gaganyaan abort test: Vehicle to go up to 11km, crew module around 15km . The Times of India . 21 October 2023 . 0971-8257 . 10 October 2023 . https://web.archive.org/web/20231010194856/https://timesofindia.indiatimes.com/home/science/gaganyaan-abort-test-vehicle-to-go-up-to-11km-crew-module-around-15km/articleshow/93007458.cms . live .
  16. Web site: Indian Navy recovered ISRO`s Gaganyaan Crew module, as storm brewed in Bay of Bengal - Science News . 2023-10-23 . www.wionews.com.

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