Astra 1G
| Mission type | Communications | 
|---|---|
| Operator | SES | 
| COSPAR ID | 1997-076A | 
| SATCAT no. | 25071 | 
| Website | https://www.ses.com/ | 
| Mission duration | Planned: 15 years Final: 25 years and 6 months | 
| Spacecraft properties | |
| Spacecraft type | Boeing 601HP | 
| Bus | HS-601HP | 
| Manufacturer | Hughes Space and Communications | 
| Launch mass | 3,379 kg (7,449 lb) | 
| Power | 6 kW | 
| Start of mission | |
| Launch date | 2 December 1997, 23:10:37 UTC | 
| Rocket | Proton-K / DM-2M | 
| Launch site | Baikonur, Site 81/23 | 
| Contractor | Khrunichev State Research and Production Space Center | 
| Entered service | February 1998 | 
| End of mission | |
| Disposal | Graveyard orbit | 
| Deactivated | June 2023 | 
| Orbital parameters | |
| Reference system | Geocentric orbit | 
| Regime | Geostationary orbit | 
| Longitude | Astra 19.2° East (1997-2009) Astra 23.5° East (2009-2010) Astra 31.5° East (2010-2014) 60° East (2014-2016) 63° East (2016-2017) 51° East (2017-2018) 57° East (2018-2019) 63° East (2019-2021) Astra 19.2° East (2021-2023) | 
| Transponders | |
| Band | 32 Ku-band | 
| Coverage area | Europe | 
Astra 1G was one of the Astra communications satellites owned and operated by SES.