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UWE-1

German student cubesat

Field	Value
name	UWE-1
names_list	Universität Würzburg's Experimentalsatellit-1
image_size	300px
mission_type	Technology demonstration
operator	University of Würzburg
COSPAR_ID	2005-043C
SATCAT	28892
mission_duration	12 months (planned)
21 days (achieved)
spacecraft_type	1U CubeSat
spacecraft_bus	CubeSat
manufacturer	University of Würzburg
launch_mass	1 kg
dimensions	10 xx
power	2 watts
launch_date	27 October 2005, 06:52:26 UTC
launch_rocket	Kosmos-3M
launch_site	Plesetsk, Site 132/1
launch_contractor	Yuzhnoye / NPO Polyot
entered_service	27 October 2005
last_contact	17 November 2005
orbit_reference	Geocentric orbit
orbit_regime	Sun-synchronous orbit
orbit_periapsis	682 km
orbit_apoapsis	708 km
orbit_inclination	98.18°
orbit_period	98.67 minutes
apsis	gee
programme	UWE satellite Series
next_mission	UWE-2

21 days (achieved)

UWE-1 (Universität Würzburg's Experimentalsatellit-1) was one of three CubeSats built by students of the University of Würzburg, launched on 27 October 2005 as part of the European Space Agency's SSETI Express mission from Plesetsk in Russia, orbiting Earth in a 686 km circular orbit. The cube-shaped satellite weighs about 1 kg and has an edge length of 10 cm, which corresponds to the CubeSat standard.

Mission

The primary mission of UWE-1 was to conduct telecommunication experiments. Among other things, it was about the data transmission on the Internet under space conditions: It was necessary to adapt the common Internet protocols to the difficult conditions in space environment on Earth, the transport of data on the Web works very reliable, but in space can increasingly delays and disruptions occur. Furthermore, UWE-1 also served as a test laboratory for highly efficient solar cells, whose performance and durability should be investigated.

Downlink/uplink frequency was 437.505 MHz, modulation was 9600 baud AFSK. The amateur radio sign of UWE-1 was DPØUWE.

End of mission

The last contact with the satellite took place on 17 November 2005. An identical UWE test model was made available to the Deutsches Museum in Munich in 2012, where it is exhibited together with a test model of the successor UWE-2 in the space department. UWE-1 was followed by the later UWE-2 launched into space on 23 September 2009.

UWE-1 still circles around the Earth today but fell silent after conducting the Internet experiments in 2005. Due to the friction with the rest of the atmosphere, UWE-1 continues braking until it will burn up completely in about 30 years.

References

McDowell, Jonathan. (21 July 2021). "Launch Log". Jonathan's Space Report.
(21 October 2021). "UWE-1". NASA.
(2021). "UWE-1 (Universität Würzburg's Experimentalsatellit-1)". ESA eoPortal Directory.
(27 October 2015). "UWE-1 has been in orbit for ten years". Julius Maximilians University of Würzburg.

Info: Wikipedia Source

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