PSLV-D1 was the first mission of the

PSLV The Polar Satellite Launch Vehicle (PSLV) is an expendable medium-lift launch vehicle designed and operated by the Indian Space Research Organisation (ISRO). It was developed to allow India to launch its Indian Remote Sensing (IRS) satellite ...

program. The rocket carried

IRS-1E IRS-1E was an Earth observation mission launched under the National Natural Resources Management System (NNRMS) programme by Indian Space Research Organisation (ISRO). Sometimes written IRS-P1. The objective of the mission was to develop Earth ...

satellite but could not deploy it as the mission failed due to a

software error A software bug is an error, flaw or fault in the design, development, or operation of computer software that causes it to produce an incorrect or unexpected result, or to behave in unintended ways. The process of finding and correcting bugs i ...

in on board guidance and control processor. PSLV-D1 was launched at 5:12 a.m.

IST Ist or IST may refer to: Information Science and Technology * Bachelor's or Master's degree in Information Science and Technology * Graduate School / Faculty of Information Science and Technology, Hokkaido University, Japan * Graduate School ...

on 20 September 1993. This mission was the only full failed mission under the PSLV program until the launch of

PSLV-C39 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 whe ...

Launch & failure

PSLV-D1 was launched at 5:12 a.m.

on 20 September 1993 from

Satish Dhawan Space Centre Satish Dhawan Space Centre - SDSC (formerly Sriharikota Range - SHAR) is a rocket launch centre (spaceport) operated by Indian Space Research Organisation (ISRO). It is located in Sriharikota, Tirupati district of Andhra Pradesh. Sriharikota R ...

(then called "Sriharikota Launching Range"). A large disturbance occurred at the point of second stage separation and one of the retro rockets of the second stage failed due to

in on board guidance and control processor. About 12 minutes after launch, the vehicle fell back to earth and crashed in the

Bay of Bengal The Bay of Bengal is the northeastern part of the Indian Ocean, bounded on the west and northwest by India, on the north by Bangladesh, and on the east by Myanmar and the Andaman and Nicobar Islands of India. Its southern limit is a line between ...

. The satellite

could not be placed in orbit and the mission was a total failure.

References

{{PSLV Spacecraft launched in 1993 Polar Satellite Launch Vehicle Satellite launch failures

Launch & failure

See also

References