What does NavIC stand for?

Navigation with Indian Constellation. The correct answer is Navigation with Indian Constellation. ISRO says NavIC was erstwhile known as IRNSS. The Prime Minister gave it the NavIC name on 28 April 2016. National Indian Navigation Constellation is wrong because ISRO's expansion begins with the word Navigation. Navigational Indian Constellation System is wrong because it borrows System from the older name IRNSS. New Indigenous Navigation Constellation is wrong because ISRO's full form does not use New or Indigenous. Memory hook: Navigation WITH Indian Constellation gives N-a-v-I-C. Read more: IRNSS / NavIC: India's Own Navigation Satellite System, Where GPS Technology Is Actually Used.

Which rocket launched IRNSS-1I on 12 April 2018?

PSLV-C41. The correct answer is PSLV-C41. ISRO says IRNSS-1I lifted off on PSLV-C41 on 12 April 2018 from Sriharikota. PSLV-C33 is wrong because it launched IRNSS-1G on 28 April 2016. PSLV-C39 is wrong because it carried IRNSS-1H in August 2017, and the heat shield did not separate. GSLV-F12 is wrong because it launched NVS-01 on 29 May 2023. Memory hook: C33 took 1G, C39 failed with 1H, C41 took 1I. Read more: IRNSS / NavIC: India's Own Navigation Satellite System, What Satellite Remote Sensing Can Measure.

On 29 July 2026, which three satellites did PIB name as giving NavIC's positioning, navigation and timing services?

IRNSS-1B, IRNSS-1I and NVS-01. The correct answer is IRNSS-1B, IRNSS-1I and NVS-01. PIB gave this list in its Lok Sabha reply of 29 July 2026. The first option is wrong because IRNSS-1F finished its ten-year life in March 2026, and its clock stopped. The second option is wrong because PIB does not list IRNSS-1G. The third option is wrong because NVS-02 could not reach its intended orbit. Memory hook: three working satellites, but four are needed for a standalone fix. Read more: IRNSS / NavIC: India's Own Navigation Satellite System, Where GPS Technology Is Actually Used.

Which band carries the new civilian signal that the NVS satellites add to NavIC?

L1 band, 1575.42 MHz. The correct answer is the L1 band, 1575.42 MHz. ISRO says a new civilian signal is being introduced in L1. The NVS series adds L1 to widen the services. The S band and the L5 band are wrong because the first-generation satellites already used them. The C band is wrong because it carries the ranging payload, not the navigation signal. Memory hook: L5 and S came first, L1 is the new one. Read more: IRNSS / NavIC: India's Own Navigation Satellite System, Where GPS Technology Is Actually Used.

In its reply of 25 March 2026, how many NavIC satellites did PIB say were broadcasting navigation signals?

Three. The correct answer is three. PIB said three satellites were broadcasting navigation signals on 25 March 2026. Eleven is wrong because that is the number launched. Eight is wrong because that is the number functional. Five is wrong because those could send only one-way messages. Memory hook: 11 launched, 8 functional, 3 navigating, 5 messaging. Read more: IRNSS / NavIC: India's Own Navigation Satellite System, What Satellite Remote Sensing Can Measure.

Where was NVS-02 meant to be placed, replacing IRNSS-1E?

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Where was NVS-02 meant to be placed, replacing IRNSS-1E?

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