Isro successfully fires improved 3rd stage of SSLV rocket
Why in News?
ISRO successfully tested an improved version of the third stage (SS3) of its Small Satellite Launch Vehicle (SSLV).

SSLV
The SSLV is a three-stage, all-solid launch vehicle developed by ISRO. It is specifically designed to provide cost-effective, on-demand launch services for small satellites (10 kg to 500 kg) into Low Earth Orbit (LEO).
| Payload Capacity | Up toΒ 500 kgΒ to 500 km planar orbit; 300 kg to Sun-Synchronous Orbit (SSO). |
| Stages | 3 stagesΒ (all solid fuel) + a liquid-basedΒ Velocity Trimming Module (VTM)Β for precise orbit injection |
| Integration Time | Quick turnaround ofΒ 72 hoursΒ (vs. 70 days for PSLV). |
| Manpower | Can be integrated by a team of onlyΒ 6 people. |
Exam TIP
- Remember the difference:
SSLV β Small satellites, low cost, quick launch
PSLV β Polar missions, versatile
GSLV β Heavy payloads, geostationary orbit
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