Amazonas 1
| Mission type | Communications | 
|---|---|
| Operator | Hispasat | 
| COSPAR ID | 2004-031A | 
| SATCAT no. | 28393 | 
| Mission duration | 15 years | 
| Spacecraft properties | |
| Bus | Eurostar 3000 | 
| Manufacturer | Astrium | 
| Launch mass | 4,545 kilograms (10,020 lb) | 
| Dimensions | 5,88 m x 2,4 m x 2,9 m (body) 36,10 m (solar arrays) | 
| Power | 9,500 watts (EOL) | 
| Start of mission | |
| Launch date | 5 August 2004 | 
| Rocket | Proton-M Briz-M | 
| Launch site | Baikonur, Kazakhstan | 
| End of mission | |
| Disposal | Graveyard orbit | 
| Deactivated | 23 June 2017 | 
| Orbital parameters | |
| Reference system | Geocentric | 
| Regime | Geostationary | 
| Transponders | |
| Band | C, Ku | 
Amazonas 1 or Hispasat 55W-1 was a communications satellite based on the Eurostar 3000 satellite bus and owned by satellites operator Hispasat, based in Madrid, Spain. It was launched on 5 August 2004, with a launch mass of 4,5 ton, on a Proton-M Briz-M launcher to be located in the 61º W geostationary position.
Amazonas 1 payloads were 36 Ku band transponders that provided communications services in Europe and America, and 27 C band transponders that provided services in America. In 2013 it was relocated to the 36º W position and replaced by Amazonas 3.
In March 2016, Hispasat announced that Amazonas 1 would be renamed as Hispasat 55W-1. Finally, the satellite was moved to a graveyard orbit and deactivated on 23 June 2017.