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PSLV-C33/IRNSS-1G

Mission type	Navigation
Operator	ISRO
COSPAR ID	2016-027A
SATCAT no.	41469
Mission duration	12 years
Spacecraft properties
Spacecraft	IRNSS-1G
Spacecraft type	Satellite
Bus	I-1K
Manufacturer	ISRO Satellite Centre Space Applications Centre
Launch mass	1,425 kilograms (3,142 lb)
Dry mass	598 kilograms (1,318 lb)
Power	1600 W
Start of mission
Launch date	12:50:00, April 28, 2016 (UTC+05:30) (2016-04-28T12:50:00UTC+05:30)
Rocket	PSLV-XL C33
Launch site	Satish Dhawan (First)
Contractor	ISRO
Orbital parameters
Reference system	Geocentric
Regime	Geosynchronous Orbit (GSO)
Longitude	129.429213 East
Perigee altitude	35,780.961 km (22,233.258 mi)
Apogee altitude	35,796.200 km (22,242.727 mi)
Inclination	4.2637
Period	23:56:12.33
Epoch	17151.68965311
NavIC← IRNSS-1FIRNSS-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.

Launch

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. 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).

Specifications

Mission life: 12 years (planned).

Lift-off mass:1,425 kilograms (3,142 lb)

Dry mass: 598 kilograms (1,318 lb).

Payload: CDMA ranging payload in C band. Navigation payload in L-5 and S band spectrums and Rubidium atomic clocks.

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.

Cost: Approximately ₹125 crore (US$15 million).

See also

• Communication-Centric Intelligence Satellite (CCI-Sat)
• GPS-aided geo-augmented navigation (GAGAN)
• Satellite navigation

References

1. ^ "NORAD Catalog Number 41469". NORAD. Retrieved 2 June 2017.
2. ^ "India launches seventh navigation satellite, to get its own GPS". The Hindu. 28 April 2016. Retrieved 28 April 2016.
3. "Annual Report 2019-20". Department of Space. Archived from the original on 6 April 2020. Retrieved 5 March 2020.
4. "ANNUAL REPORT 2020-2021" (PDF). ISRO. Archived from the original (PDF) on 25 April 2021. Retrieved 6 March 2021.
5. "PSLV-C33/IRNSS-1G". ISRO. Archived from the original on 28 April 2016. Retrieved 28 April 2016.
6. ^ PTI (26 April 2016). "Countdown for IRNSS-1G launch begins at Sriharikota". The Hindu. Retrieved 28 April 2016.
7. "PSLV-C33 Successfully Launches India's Seventh Navigation Satellite IRNSS-1G - ISRO". www.isro.gov.in. Archived from the original on 1 November 2021. Retrieved 1 November 2021.
8. ^ "PSLV-C33 - IRNSS-1G Specifications" (PDF). ISRO. Archived from the original (PDF) on 25 April 2016. Retrieved 28 April 2016.
9. "'Isro launches rocket carrying India's seventh navigation satellite'". Business Standard. 28 April 2016. Retrieved 28 April 2016.
10. ^ "SALIENT FEATURES OF IRNSS 1G". www.ursc.gov.in. Retrieved 1 November 2021.
11. "IRNSS-1G". ISRO. Archived from the original on 24 April 2016. Retrieved 28 April 2016.
12. Sangeeta Ojha (28 April 2016). "India's own navigation satellite IRNSS-1G launched: All you need to know about it". India Today. Retrieved 28 April 2016.
13. Vanita Srivastava (1 May 2016). "IRNSS: Desi GPS to liberate India from dependence on US, Russia". Economic Times. Retrieved 2 May 2016.

External links

• ISRO Future Programmes

v t e Navigation with Indian Constellation (NavIC)
Satellites	IRNSS-1A (Jul 2013) IRNSS-1B (Apr 2014) IRNSS-1C (Oct 2014) IRNSS-1D (Mar 2015) IRNSS-1E (Jan 2016) IRNSS-1F (Mar 2016) IRNSS-1G (Apr 2016) IRNSS-1H (Aug 2017, launch failure) IRNSS-1I (Apr 2018) NVS-01 (2021-21) NVS-02 (Planned) NVS-03 (Planned) NVS-04 (Planned) NVS-05 (Planned)
Related articles	Indian Space Research Organisation Polar Satellite Launch Vehicle Geosynchronous Satellite Launch Vehicle

v t e Indian spacecraft
List of Indian satellites List of Satish Dhawan Space Centre launches List of ISRO missions
Satellites	Communication CMS 01 02 GSAT 1 2 3 (EDUSAT) 4 5P 6 6A 7 7A 8 9 (South Asia Satellite) 10 11 12 14 15 16 17 18 19 29 30 31 HAMSAT INSAT 1A 1B 1C 1D 2A 2B 2C 2D 2DT 2E 3A 3B 3C 3D 3DR 3DS 3E 4A 4B 4C 4CR 4E 4F 4G Planned: GSAT 20 22 23 24 Earth observation Bhaskara I II Cartosat 1 2 2A 2B 2C 2D 2E 2F 3 EMISAT EOS 1 2 4 7 8 HySIS IMS-1 IRS 1A 1B 1C 1D 1E P1 P2 P3 Megha-Tropiques Microsat Microsat-R Oceansat 1 2 Resourcesat 1 2 RISAT 1 2 2B 2BR1 Rohini RS-D1 RS-D2 SARAL SCATSAT-1 Technology Experiment Satellite (TESS) Planned: NISAR GISAT Oceansat-3 Resourcesat-3 RISAT-1A Experimental APPLE Aryabhata Rohini RS-1 Rohini Technology Payload (RTP) Navigation IRNSS 1A 1B 1C 1D 1E 1F 1G 1I NVS-01 Student satellites ANUSAT Jugnu SRMSAT StudSat StudSat-2 YouthSat Pratham
Space probes	Scientific SROSS A B C C2 Astronomical Astrosat Aditya-L1 XPoSat AstroSat-2 (planned) Lunar programme Chandrayaan-1 Moon Impact Probe Chandrayaan-2 Vikram Pragyan Chandrayaan-3 Vikram Pragyan Lunar Polar Exploration Mission Chandrayaan-4 Chandrayaan-5 Chandrayaan-6 Interplanetary Mars Orbiter Mission Mars Orbiter Mission 2 (planned) Venus Orbiter Mission (planned)
Human spaceflight	Indian Human Spaceflight Programme SRE-1 SRE-II SRE-III Gaganyaan CARE Bharatiya Antariksha Station
Future spacecraft in italics.

• Spacecraft launched by India in 2016
• IRNSS satellites
• Spacecraft launched by PSLV rockets