City
Epaper

GSLV rocket launch postponement has happened in the past

By IANS | Updated: July 15, 2019 15:35 IST

15 There is many a slip between the cup and the lip, goes the proverb and which has proved true for the Indian space agency that had to call off its Rs 978 crore moon mission, the Chandrayaan-2, an hour before the rocket's flight on Monday due to a technical snag.

Open in App

The Chandrayaan-2 spacecraft was to be carried by India's heavy lift rocket Geosynchronous Satellite Launch Vehicle-Mark III (GSLV-Mk III).

To date India has flown 16 GSLV rockets (Mk I, II and III) and the total number of successful and failed missions are 12 and four respectively.

Last minute mission postponement has taken place in the past involving GSLV rockets.

For instance, the GSLV-D5 that successfully launched GSAT-14 in January 2014 gave tension to ISRO officials.

Originally it was scheduled for launch on August 19, 2013. Just hours before the blast off, fuel started leaking from its second stage or engine.

An ISRO official then had said that the second stage was replaced with a new one built with a different metal. He then added that some critical components in the four strap-on motors of the first stage was also replaced as a matter of precaution.

Similarly, the 2007 flight of GSLV rocket gave anxious moments to ISRO officials. Fifteen seconds before the lift-off, the rocket's computers put GSLV on hold detecting anomalies in the cryogenic fuel stage.

The launch was postponed by two hours to set right the problem even as ISRO officials were considering rescheduling the launch by another two days.

However, the detection of one of the vent valves in the cryogenic engine that had not shut properly led to its immediate rectification.

That apart, ISRO scientists were on tenterhooks till the last moment as for few seconds during the final cryogenic stage signals from the rocket failed to reach the ground stations.

(Venkatachari Jagannathan can be contacted at v.jagannathan@.in)

( With inputs from IANS )

Open in App

Related Stories

InternationalPakistan lacks coherent plan to combat HIV as cases continue to rise: Report

Other SportsSub-jr Women's National Hockey: Chandigarh, Karnataka, Mizoram, Haryana, Odisha win on Day 6

HealthPakistan lacks coherent plan to combat HIV as cases continue to rise: Report

NationalTN: Nine policemen get death sentence in Sattankulam custodial deaths case​

Other SportsNaseem Shah may be pulled up on fitness issues as pacer withdraws from PSL: Report

National Realted Stories

NationalMaha govt assures fuel stability, says no need to panic​

NationalNDA will form government in Tamil Nadu amid ‘wave of change’: Maha CM Fadnavis

NationalVisually impaired protesters march towards CM's residence in Shimla, demanding Job Quota Backlog

NationalCPM and Congress are B team of BJP, says Trinamool leader Abhishek Banerjee

NationalIndia's strong fiscal position gives RBI more policy space: FM Sitharaman