| PSLV-C33/IRNSS-1G | |
| Mission Type: | Navigation |
| Operator: | ISRO |
| Satcat: | 41469 |
| Mission Duration: | 12 years |
| Spacecraft: | IRNSS-1G |
| Spacecraft Type: | Satellite |
| Spacecraft Bus: | I-1K |
| Manufacturer: | ISRO Satellite Centre Space Applications Centre |
| Dry Mass: | 598kg (1,318lb) |
| Launch Mass: | 1425kg (3,142lb) |
| Power: | 1600 W |
| Launch Rocket: | PSLV-XL C33 |
| Launch Site: | Satish Dhawan (First) |
| Launch Contractor: | ISRO |
| Orbit Epoch: | 17151.68965311 |
| Orbit Reference: | Geocentric |
| Orbit Regime: | Geosynchronous Orbit (GSO) |
| Orbit Periapsis: | 35780.961km (22,233.258miles)[1] |
| Orbit Apoapsis: | 35796.2km (22,242.7miles) |
| Orbit Inclination: | 4.2637 |
| Orbit Period: | 23:56:12.33 |
| Orbit Longitude: | 129.429213 East |
| Apsis: | gee |
| Programme: | NavIC |
| Previous Mission: | IRNSS-1F |
| Next Mission: | IRNSS-1H |
IRNSS-1G was the seventh and final of the Indian Regional Navigation Satellite System (IRNSS) series of satellites after IRNSS-1A, IRNSS-1B, IRNSS-1C, IRNSS-1D, IRNSS-1E and IRNSS-1F. This system of satellites will provide navigational services to the Indian region. The satellite was launched successfully on 28 April 2016 at 07:20 UTC.
IRNSS-1G along IRNSS-1A is being used only for NavIC's short message broadcast service and not for navigation.[2] [3]
The satellite was launched from the First Launch Pad (FLP) of Satish Dhawan Space Centre, Sriharikota on board PSLV-C33 XL on 28 April 2016 at 12:50 PM IST.[4] [5] The countdown of the launch had begun 51:30 hours before at 9:20 AM IST on 25 April 2016.
After the launch of IRNSS-1G the Indian government named the IRNSS system as NAVIC (Navigation with Indian Constellation).[6]
Mission life: 12 years (planned).[7]
Lift-off mass:
Dry mass: .[8]
Payload: CDMA ranging payload in C band.[9] [10] Navigation payload in L-5 and S band spectrums and Rubidium atomic clocks.[11]
Power: Two triple-junction solar panels to generate 1660W of energy and one Lithium-ion 90A-hr battery is used.
Propulsion: MMH/MON3 based bipropellant system with 12×22N Attitude control thrusters and one 440N LAM.
Orbit: Geosynchronous orbit at 129.5° East longitude with 5° inclination.[12]
Cost: Approximately .[13]