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| Spacecraft properties | |
|---|---|
| Bus | HS-376 |
| Manufacturer | Hughes Aircraft Corporation |
| BOL mass | 646.5 kilograms (1,425 lb) |
| Start of mission | |
| Launch date | 17 June 1985 |
| Rocket | Space Shuttle Discovery/STS-51-G |
| Transponders | |
| Band | C band: 18 (+2 spares) Ku band: 4 (+2 spares) |
| EIRP | C band: 36 dBW Ku band: 44 dBW |
| Spacecraft properties | |
|---|---|
| Bus | HS-376 |
| Manufacturer | Hughes Aircraft Corporation |
| BOL mass | 646.5 kilograms (1,425 lb) |
| Start of mission | |
| Launch date | 27 November 1985 |
| Rocket | Space Shuttle Atlantis/STS-61-B |
| Transponders | |
| Band | C band: 18 (+2 spares) Ku band: 4 (+2 spares) |
| EIRP | C band: 36 dBW Ku band: 44 dBW |
| Operator | MEXSAT |
|---|---|
| COSPAR ID | 2015-056A |
| Mission duration | 15 years |
| Spacecraft properties | |
| Bus | 702HP GeoMobile |
| Manufacturer | Boeing |
| Launch mass | 5,325 kilograms (11,740 lb) |
| BOL mass | 3,200 kilograms (7,100 lb) |
| Power | 14kW |
| Start of mission | |
| Launch date | 2 October 2015 |
| Rocket | Atlas V 421 (AV-059) |
| Orbital parameters | |
| Longitude | 113° W |
| Transponders | |
| Band | L band andKu band |
TheMorelos satellites are a series ofMexicancommunications satellites. The first two operated between 1985 and 1998 and provided telephony, data, and television services over the territory of the Mexican Republic and adjacent areas. The third is now part of theMEXSAT constellation (sister ship of the MEXSAT-1 lost during launch) but carries theMorelos name.
The originalMorelos satellites were replaced by theSolidaridad Satellite System (Solidaridad I, launched 17 November 1993, andSolidaridad 2, launched 17 October 1994) and, following privatisation, by theSatmex Satellite System.
Morelos I was Mexico's first communications satellite. It was built and put into orbit under a contract from theSecretariat of Communications and Transport (SCT), the federal ministry responsible for the nation's communications systems.Morelos I, aHughes Aircraft CorporationHS-376, was launched by the U.S.Space ShuttleDiscovery (missionSTS-51-G) on 17 June 1985 and enteredgeostationary orbit at 113° W on 17 December 1985.
Morelos II was launched in November 1985 and remained in service until July 1998. Built by the Hughes Aircraft Corporation for the SCT, it was launched by the Space ShuttleAtlantis on 27 November 1985; the mission,STS-61-B, includedMexican-born astronautRodolfo Neri Vela as a payload specialist in its crew.Morelos II held a geostationary orbit at 116.8° W.
Morelos III (originallyMEXSAT 2) was launched on 2 October 2015 at 10:28 UTC onAtlas V 421 AV-059 and the 100th launch by theUnited Launch Alliance. The spacecraft is designed to provide L-band services to mobile 3G+ users and armed forces via a deployable 22mHerschelian antenna dish with RF transceivers. It also has a 2m Ku-band dish of fixed geometry with a much simpler deployment sequence. The spacecraft is aBoeing 702HP GeoMobile spacecraft bus equipped with an RD-4 main engine for completing its ascent to geostationary orbit at 113° W from an ascent orbit of 4750 by 35800km inclined at 27° following the now-typical long duration two-burn profile of theAtlas V.[1][2][3] It was originally intended to serve with the similar MEXSAT-1Centenario spacecraft (which would have been at 116° W) lost during the 3rd stage failure of the 406thProton, a launch vehicle of Proton-M/Briz-M configuration.[4]
