PSLV-D1
From Spacefaring
Q24882963
Q24882963
PSLV-D1 was the first mission of the PSLV program. The rocket carried IRS-1E satellite but could not deploy it as the mission failed due to a software error in on board guidance and control processor. PSLV-D1 was launched at 5:12 a.m. IST on 20 September 1993. This mission was the only full failed mission under the PSLV program until the launch of PSLV-C39.