USP (satellite bus)

USP
(УКП)
ManufacturerRSC Energia
Country of originRussia
ApplicationsCommunications,
Specifications
Spacecraft typeLEO to GEO universal platform
Dry mass950 kg (2,090 lb) to 1,200 kg (2,600 lb)
Payload capacityHEO: 500 kg (1,100 lb) to 1,000 kg (2,200 lb)
GEO 250 kg (550 lb) to 300 kg (660 lb)
PowerHEO up to 3000W
GEO up to 2000W
BatteriesNiH2
RegimeLEO, HEO and GEO
Design lifeHEO >= 7 years
GEO >=12.5 years
Production
StatusIn Production
On order12
Built7
Launched7
Operational3
Retired1
Failed2
Lost1
Maiden launchSeptember 06, 1999, Yamal 101 and Yamal 102
Last launchDec 26, 2017, Angosat 1

The USP, for Universal Space Platform (Russian: Универсальная Космическая Платформа, romanizedUniversal'naya Kosmicheskaya Platforma; Russian: УКП, romanized: UKP), also known as Viktoria (Виктория), is a highly flexible satellite bus designed and manufactured by RSC Energia.[1][2][3][4][5][6] It is called universal because it has been designed to be operated from LEO to GEO.[1] It is a three axis stabilized platform with electric propulsion for station keeping, but chemical propellant is offered as an option.[1] The bus can offer up to 3000 W of power and a payload capacity up to 1,000 kg (2,200 lb) for Low Earth orbit or HEO an up to 300 kg (660 lb) for geostationary orbit.[1]

The platform is designed for direct orbital injection, and thus lacks orbit raising propulsion.[3] It does however, support dual launching on Proton-M, which can enable cheap launching, or the use of smaller vehicles like the Soyuz-2.1b/Fregat-M or even the Dnepr for low energy orbits.[1]

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  3. ^ a b Cite error: The named reference energia-yamal200p01 was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference energia-yamal200p02 was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference energia-yamal200p03 was invoked but never defined (see the help page).
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