Uosat 3

United Kingdom

Spacecraft nº:

UK spacecraft nº: 20

Also called UO-14 or Oscar 14

Launch data:

Designation	20437 / 90005B
Launch date	22 Jan 1990
Launch site	Ko, ELA-2
Launch vehicle	Ariane-40 (V35)
Mission	Telecommunications
Earth orbit:
Perigee/Apogee	781/797 km
Inclination	98.6°
Period	100.7 min

Function: Packet Radio Mailbox and Digipeater

Since 1992 it is used by VITA (see also Gemstar)

It was reactivated for a few weeks for its 10th anniversary in single channel FM voice repeater mode, uplink is 145.975, and downlink is 435.070 MHz

End of life

Out of service	late 1996
Cause	onboard computer failure
Decay

Specifications

Prime contractor	University of Surrey (UK)
Platform	UoSAT (modular)
Mass at launch	46 kg
Dimension	0.6 x 0.34 x 0.34 m
Stabilization	3 axis
DC power	EOL: 10 W
Design lifetime	3 years

Frequency chart

Uplink	9600 bps K9NG/G3RUH modulated FSK (FM) AX.25 145.975 MHz
Downlink	9600 bps K9NG/G3RUH modulated FSK (FM) AX.25 435.070 MHz
Beacon	1200 bps AFSK NBFM 435.070 MHz

Ref: #15 - update: 27.10.04