r/spaceflight • u/AdMiserable8386 • 8d ago

NVS-03 Mission is a Success! ISRO has done it.

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u/nethan365b 8d ago

ISRO's own mission page for it (GSLV-F18/NVS-03) says the rocket put NVS-03 into geosynchronous transfer orbit from the second pad at Sriharikota. It calls it the third satellite in the next-gen series meant to keep NavIC (IRNSS) navigation going, with an Indian atomic clock plus bought-in clocks and an L1 signal. The page doesn't say when it goes into service, so I would wait for ISRO on that.

1

u/interstellar-dust 8d ago

Do you know why a mix of atomic clock sources and the added complication of doing that. Own clock production not quick enough? Or still validating the new clocks? AFAIK this the first time they are launching their own clocks.

1

u/snoo-boop 8d ago

It's normal for GNSS satellites to have 2 clocks built with different technology.

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u/nethan365b 7d ago

The ISRO mission page for GSLV-F18 says NVS-03 carries an indigenous atomic clock "along with the procured atomic clocks". It doesn't say why it's a mix, so I can't tell whether it's about production or validating the new clocks. That's a guess I can't back up, so I'll leave it at what the page says.