SF Prep Notes

ISRO completes 100th launch from Sriharikota with GSLV-F15/NVS-02

ISRO's GSLV-F15 lifted off from the Second Launch Pad at Sriharikota at 06:23 hrs on 29 January 2025 carrying the NVS-02 navigation satellite, the 100th launch from India's spaceport.

Summary

ISRO completed a century of launches from Satish Dhawan Space Centre, Sriharikota on 29 January 2025, when GSLV-F15 lifted off from the Second Launch Pad at 06:23 hrs carrying the NVS-02 navigation satellite. GSLV-F15, the 17th GSLV launch, used an indigenous cryogenic stage and placed NVS-02 in the intended Geosynchronous Transfer Orbit with high precision. NVS-02 belongs to the NavIC series; ISRO said on 2 February 2025 that orbit-raising to the designated slot could not be carried out because the oxidiser valves for the thrusters did not open, leaving the satellite healthy but in an elliptical orbit. MoS Jitendra Singh noted that Sriharikota's first launch pad came up in 1993 and the second in 2004.

Key facts

Date and time
29 January 2025, 06:23 hrs
Site
Second Launch Pad, SDSC SHAR, Sriharikota
Rocket
GSLV-F15 (17th GSLV launch)
Payload
NVS-02 navigation satellite (NavIC)
Orbit
Geosynchronous Transfer Orbit
Milestone
100th launch from Sriharikota
Later issue
Orbit raising not done; oxidiser valves did not open (ISRO, 2 Feb 2025)

Practice MCQs 3 questions

Q1

Which launch vehicle carried out ISRO's 100th launch from Sriharikota on 29 January 2025?

Show answer

Correct answer: D — GSLV-F15

ISRO: GSLV-F15 lifted off from the Second Launch Pad on 29 January 2025, the 100th launch from Sriharikota.

Q2 Advanced

The NVS-02 satellite launched on 29 January 2025 belongs to which Indian system?

Show answer

Correct answer: A — NavIC

ISRO: NVS-02 is a navigation satellite of the NavIC series, India's independent regional navigation satellite system.

Q3 Advanced

Consider the following statements about the GSLV-F15/NVS-02 mission: 1. It lifted off from the Second Launch Pad at Sriharikota. 2. It was the 17th launch of GSLV. 3. NVS-02 was raised to its designated orbital slot within a week of launch. Which of the statements given above is/are correct?

Show answer

Correct answer: B — 1 and 2 only

ISRO: GSLV-F15 lifted off from the Second Launch Pad and was the 17th GSLV launch; orbit raising could not be carried out because the oxidiser valves did not open.

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