GSAT-18
Sign in to saveAlso known as GSAT 18
GSAT-18 is an Indian communications satellite. Built by ISRO and operated by INSAT, it carries 24 C-band, 12 extended C-band, and 12 Ku-band transponders.As of 2025, 6 transponders in the spacecraft are kept in idle, as GSAT-14 covers their spectrum.they are expected to be online in early 2027.
Key facts
- Spaceflight.auto
- all
- Spaceflight.name
- GSAT-18
- Spaceflight.image
- File:GSAT-18.png
- Spaceflight.mission_type
- Communications
- Spaceflight.operator
- INSAT
- Spaceflight.COSPAR_ID
- 2016-060A
- Spaceflight.SATCAT
- 41793
- Spaceflight.website
- GSAT-18
- Spaceflight.mission_duration
- Planned: 15 years Elapsed:
- Spaceflight.spacecraft_bus
- I-3K
- Spaceflight.manufacturer
- ISRO Satellite CentreSpace Applications Centre
- Spaceflight.power
- 6,474 watts
- Spaceflight.launch_date
- , ≈20:30 UTC
- Spaceflight.launch_rocket
- Ariane 5 ECA, VA-231
- Spaceflight.launch_site
- Guiana Space Centre ELA-3
- Spaceflight.launch_contractor
- Arianespace
- Spaceflight.orbit_reference
- Geocentric
- Spaceflight.orbit_regime
- Geostationary
via Wikipedia infobox
Wikidata facts
- Instance of
- communications satellite
- Operator
- Indian National Satellite System
- Country of origin
- India
- Parent body
- Earth
- Mass
- 3404
- Orbital period
- 1436.08
- Manufacturer
- Space Applications Centre
- Official website
- www.isro.gov.in/Spacecraft/gsat-18
- Image
- GSAT-18.png
- Significant event
- rocket launch
Show 10 more facts
- UTC date of spacecraft launch
- 2016-10-05
- start point
- ELA-3
- Commons category
- GSAT-18
- launch contractor
- Arianespace
- type of orbit
- geostationary orbit
- orbital eccentricity
- 0.0001135
- orbital inclination
- 0.0273
- periapsis
- 35781
- apoapsis
- 35791
- semi-major axis of an orbit
- 42164
Sources (3)
via Wikidata · CC0
~2 min read
Encyclopedic overview
2 sectionsContents
- Orbit raising and station keeping
- References
GSAT-18 is an Indian communications satellite. Built by ISRO and operated by INSAT, it carries 24 C-band, 12 extended C-band, and 12 Ku-band transponders.As of 2025, 6 transponders in the spacecraft are kept in idle, as GSAT-14 covers their spectrum.they are expected to be online in early 2027.
The satellite was launched on 5 October 2016 at approximately 20:30 UTC aboard an Ariane 5 ECA rocket from the Guiana Space Centre in Kourou, French Guiana. The launch vehicle inserted the satellite into a geosynchronous transfer orbit, and once in service it will occupy the orbital slot at 74° East longitude. The total cost of the satellite and launch services was about .
Excerpted from Wikipedia’s “GSAT-18” article, available under the CC BY-SA 4.0 licence.