PSLV-C39
 PSLV rocket | |
| Mission type | Deployment of IRNSS-1H into sub-GTO |
|---|---|
| Operator | ISRO |
| Website | ISRO website |
| Spacecraft properties | |
| Spacecraft | Expendable launch vehicle |
| Manufacturer | ISRO |
| Launch mass | 321 t |
| Payload mass | 1425 kg |
| Start of mission | |
| Launch date | 19:00, 31 August 2017 ( Sriharikota Launching Range |
| Contractor | ISRO |
| Payload | |
List of Satellites : | |
Polar Satellite Launch Vehicle – C39 was the forty-first flight of the PSLV series of launch vehicles on 31 August 2017. Launched in its XL configuration, the vehicle suffered a rare failure – the first failure after 24 years of operations[1] when the heat shield failed to separate and the payload became trapped inside the heat shield and could not be deployed.[2]
The mission
PSLV-C39 was supposed to launch the IRNSS-1H, the eighth satellite of the
pyro devices designed to explosively separate the heat shield,[4] the satellite remained within the heat shield.[1] The satellite stuck within the heat shield with a combined weight of around 2,400 kilograms (5,300 lb) was expected to re-enter and burn up in the Earth's atmosphere in 40 – 60 days,[5][2] though in reality this only occurred after 548 days on 2 March 2019 around 19:23 UTC near Fiji.[6]
References
- ^ a b "ISRO launch 'unsuccessful'". Hindustan Times. Wayback Machine. September 2017. Archived from the original on 9 February 2018. Retrieved 9 February 2018.
- ^ a b d. s, Madhumathi (September 2017). "What went wrong in PSLV-C39 launch?". The Hindu. Wayback Machine. Archived from the original on 9 February 2018. Retrieved 9 February 2018.
- ^ Johnson TA (29 August 2017). "ISRO readies replacement satellite after clock failure". The Indian Express. Wayback Machine. Archived from the original on 9 February 2018. Retrieved 9 February 2018.
- ^ U Tejonmayam. "Why PSLV-C39 failed". Times of India. WebCite. Archived from the original on 9 February 2018. Retrieved 9 February 2018.
- ^ "IRNSS-1H satellite and PSLV heat shield to re-enter Earth's atmosphere in 40-60 days". Firstpost. 5 September 2017.
- ^ Space-Track.org TIP messages for object 42928 (IRNSS 1H + PSLV upper stage), published on 3 March 2019. Retrieved 29 May 2023.
External links
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