UoSAT-12

Amateur radio satellite

UoSAT-12
Spacecraft properties

Operator	University of Surrey
COSPAR ID	1999-021A
SATCAT no.	25693


Manufacturer	SSTL


Start of mission
Launch date	21 April 1999, 05:00 (1999-04-21UTC05Z) UTC
Rocket	Dnepr
Launch site	Baikonur 109/95


Orbital parameters
Reference system	Geocentric
Regime	Sun-synchronous

UoSAT-12 is a British satellite in Low Earth Orbit. It is the twelfth satellite in the University of Surrey series and was designed and built by Surrey Satellite Technology Ltd. (SSTL). It was launched into orbit in April 1999 on board a Dnepr rocket from Yasny Russia.^[1]

Mission

UoSAT-12 was an experimental mission used to demonstrate and test a number of new technologies. Imaging cameras and a high-speed 1 Mbit/s S-band downlink (the MERLION experiment) were tested. An Internet Protocol stack was uploaded to the satellite, allowing experiments in extending the Internet to space to be made by NASA Goddard as part of its Operating Missions as Nodes on the Internet (OMNI) effort.^[2]^[3]

These now-proven technologies were later adopted by SSTL in the design of its Disaster Monitoring Constellation satellites.

References

^ M. Fouquet and M. Sweeting, UoSAT-12 minisatellite for high performance Earth observation at low cost, proceedings of IAF '96.
^ K. Hogie, et al., Using standard Internet Protocols and applications in space, Computer Networks, special issue on Interplanetary Internet, vol. 47 no. 5, pp. 603-650, April 2005.
^ K. Hogie, et al., Putting more Internet nodes in space Archived 2008-11-16 at the Wayback Machine, CSC World, Computer Sciences Corporation, pp. 21-23, April/June 2006.

UoSAT satellites

UoSAT-1
UoSAT-2
UoSAT-3
UoSAT-4
UoSAT-5
UoSAT-12

See also: Surrey Satellite Technology Ltd. (SSTL)

v t e ← 1998 Orbital launches in 1999 2000 →
January	Mars Polar Lander ROCSAT-1
February	Stardust Globalstar 23, Globalstar 36, Globalstar 38, Globalstar 40 Telstar 6 JCSAT-6 Soyuz TM-29 ARGOS, Ørsted, SUNSAT Arabsat 3A, Skynet 4E Globus No.15
March	Wide Field Infrared Explorer Globalstar 23, Globalstar 37, Globalstar 41, Globalstar 46 AsiaSat 3S DemoSat
April	Progress M-41, Sputnik 99 INSAT-2E USA-142 Eutelsat W3 Globalstar 19, Globalstar 42, Globalstar 44, Globalstar 45 Landsat 7 UoSAT-12 Ikonos-1 ABRIXAS, Megsat-0 USA-143
May	Orion 3 Feng Yun 1C, Shijian 5 TERRIERS, MUBLCOM Nimiq 1 USA-144 Oceansat-1, Kitsat-3, DLR-Tubsat STS-96 (Starshine 1)
June	Globalstar 25, Globalstar 47, Globalstar 49, Globalstar 52 Iridium 14A, Iridium 21A Astra 1H QuikSCAT FUSE
July	Gran' No.45 Molniya 3-50 Globalstar 30, Globalstar 32, Globalstar 35, Globalstar 51 Progress M-42 Okean-O No.1 STS-93 (Chandra) Globalstar 26, Globalstar 28, Globalstar 43, Globalstar 48
August	Telkom 1, Globalstar 24, Globalstar 27, Globalstar 53, Globalstar 54 Kosmos 2365 Kosmos 2366
September	Koreasat 3 Yamal-101, Yamal-102 Foton 12 Globalstar 33, Globalstar 50, Globalstar 55, Globalstar 58 EchoStar V Ikonos 2 Telstar 7 LMI-1 Resurs F-1M
October	USA-145 DirecTV-1R CBERS-1, SACI-1 Globalstar 31, Globalstar 56, Globalstar 57, Globalstar 59 Orion 2 Ekspress A1
November	GE-4 MTSAT-1 Shenzhou 1 Globalstar 29, Globalstar 34, Globalstar 39, Globalstar 61 USA-146
December	Hélios 1B, Clémentine Orbcomm FM30, Orbcomm FM31, Orbcomm FM32, Orbcomm FM33, Orbcomm FM34, Orbcomm FM35, Orbcomm FM36 XMM-Newton † VLS-1 V02 (SACI-2) USA-147 Terra STS-103 Arirang-1, ACRIMSAT, Millennial Galaxy 11 Kosmos 2367 Kosmos 2368
Launches are separated by dots ( • ), payloads by commas ( , ), multiple names for the same satellite by slashes ( / ). Crewed flights are underlined. Launch failures are marked with the † sign. Payloads deployed from other spacecraft are (enclosed in parentheses).