Augmented Satellite Launch Vehicle (ASLV) Programme was designed to augment the payload capacity to 150 kg, thrice that of SLV-3, for Low Earth Orbits (LEO). With a lift-off weight of 40 tonnes, the 24 m tall ASLV was configured as a five-stage, all-solid propellant vehicle, with a mission of orbiting 150 kg class satellites into 400 km circular orbits. While building upon the experience gained from the SLV-3 missions, ASLV proved to be a low-cost intermediate vehicle to demonstrate and validate critical technologies, that would be needed for the future launch vehicles like strap-on technology, inertial navigation, bulbous heat shield, vertical integration, and closed-loop guidance.
List of ASLV Launches
| S.no | Title | Launch Date | Details |
| 1 | ASLV-D1 | Mar 24, 1987 | Augmented Satellite Launch Vehicle ASLV-D1, the first developmental flight carrying SROSS-1 Satellite with scientific instruments took place on March 24, 1987, was not successful. The satellite was launched onboard the first developmental a flight of ASLV. It did not reach the orbit. (Mission Unsuccessful) |
| 2 | ASLV-D2 | Jul 13, 1988 | Augmented Satellite Launch Vehicle ASLV-D2, the second developmental flight carrying SROSS-2 Satellite with scientific instruments took place on July 13, 1988, was not successful. The satellite was launch onboard into the second developmental site of ASLV. However, did not reach the orbit. (Mission Unsuccessful) |
| 3 | ASLV-D3 | May 20, 1992 | Augmented Satellite Launch Vehicle ASLV-D3, the third developmental flight carrying SROSS-C Satellite with scientific instruments took place on May 20, 1992, was successful. The first satellite successfully orbited by ASLV. (Success) |
| 4 | ASLV-D4 | May 05, 1994 | Augmented Satellite Launch Vehicle ASLV-D4, the fourth developmental flight carrying SROSS-C2 Satellite with scientific instruments took place on May 05, 1994, was successful. The second satellite successfully orbited by ASLV. Worked for four years after its launch. (Success) |
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