The Heart of NavIC-Navigation with Indian Constellation

Authors

  • Thejesh N. Bandi [1]Department of Physics and Astronomy, The University of Alabama, Tuscaloosa, AL-35401, USA. and [2]NIST Associate, Time and Frequency Division, NIST, Boulder, CO-80305, USA.

DOI:

https://doi.org/10.5530/bems.11.1.4

Keywords:

NavIC, GNSS, Rubidium, Atomic Clock, IRAFS, Satellite, Positioning, Navigation, Timing (PNT)

Abstract

Global Navigation Satellite System (GNSS) has become indispensable for various applications worldwide. Regional navigation satellite systems cover the regions up to 1500 km2 providing the Positioning, Navigation, and Timing (PNT) solutions. Navigation with Indian Constellation (NavIC) is such a regional system, now having its own indigenously developed space atomic clock - the Indian Rubidium Atomic Frequency Standard (IRAFS) that was launched onboard NVS-01 providing services to the Indian subcontinent. This paper provides an overview of the successfully developed IRAFS technology and its performance capabilities meeting the stringent space clock requirements for NavIC, and provides directions for the future aspects that could improve the technology further.

The typical frequency stability of IRAFS and the time deviation over an averaging period of 10,000 s

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Published

2025-03-19

How to Cite

Thejesh N. Bandi. (2025). The Heart of NavIC-Navigation with Indian Constellation. Biology, Engineering, Medicine and Science Reports, 11(1), 18–20. https://doi.org/10.5530/bems.11.1.4

Issue

Vol. 11 No. 1 (2025): BEMS Reports

Section

Brief Report

License

Copyright (c) 2025 Author(s)

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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