On Thursday, Indian Space Research Organisation (ISRO) attempt to indigenous navigation satellite IRNSS-1H became unsuccessful.
It is because the heat shield of the PSLV rocket or heat shield tip in which the satellite is housed remain shut although the satellite reached sub-geosynchronous transfer orbit.
It was to open 3 minutes and 23 seconds into the flight of the rocket. The new satellite manufactured by an institution led by Alpha Design Technologies. It is a defense device supplier from Bengaluru, since eight months.
Yesterday, ISRO said the rocket carrying IRNSS-1H satellite had a standard lift-off, but the heat shield used to protect the satellite did not separate.
ISRO chairman Kiran Kumar said:
“THE MISSION WAS FAILED. ALL STAGES OF THE MISSION ARE EXECUTED WELL. BUT THERE WAS AN ACCIDENT. THE SATELLITE IS STILL INSIDE THE FOURTH STAGE. THE HEAT SHIELD DIDN’T SEPARATE. AS A RESULT, THE SATELLITE IS ENCLOSED IN THE BODY OF THE FOURTH STAGE. WE HAVE CHECKED HEAT SHIELD SEPERATION COMMAND AND WHATEVER OCCURRED SUBSEQUENTLY AND IT WILL BE ANALYZED”.
He also said that,
“WE COULD WATCH THE SATELLITE CIRCLING ALONG THE ORBIT WITH THE HEAT SHIELD.”
At around 7 PM C39 fired off from the second launch pad at the Sriharikota’s Satish Dhawan Space Centre, one minute after it was scheduled to prevent space wreckage.
IRNSS-1H was to replace IRNSS-1A…!!
The eighth in the NavIC constellation, IRNSS-1H was to replace the first satellite in the constellation, i.e., IRNSS-1A whose rubidium atomic clocks functioning had halted. The clocks are a severe component in providing correct locational data.
IRO officials said that the atomic clocks in IRNSS-1A stopped due to problems in critical factors such as temperature, rubidium bulb that produces electronic power supply and illuminates the light.
Launched on July 1, 2013, IRNSS-1A will continue to offer messaging service. In 2016, ISRO scientists discovered that all the three atomic clocks deployed in the satellite halted.
But they added that the clocks failure would not affect navigation system performance as a minimum of four satellites is sufficient to offer services. ISRO has total six satellites in the orbit that are wholly functional.
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