Temisat [Kayser Threde]
Official name TEMISAT
Alternative name Temisat
Cospar ID 1993-055B
Norad ID 22783
Launch date 1993-08-31
Launch site PKMTR
Launch vehicle Tsiklon-3
Country/Organization Italy
Type application Environmental data collection and relay
Operator Telespazio SpA
RCS size MEDIUM
Decay date ON ORBIT
Period (min) 104.06
Inclination (deg) 82.55
Perigee (km) 934
Apogee (km) 967
Eccentricity 0.0173592845870594
Mean motion (revs. per day) 13.8381702863732
Semi-Major axis (km) 7328.635
Raan (deg) 188.5702
Arg of perigee (deg) 204.7686
Shape Hex Poly
Mass (kg) 41.63
Height (m) 0.35
Width (m) 0.35
Depth (m) 0.35
Span (m^2) 0.35
Lifetime 5 years (planned); 1 year (achieved)
Contractors Kayser-Threde GmbH
Propulsion None
Configuration Blackbird-350
Power Solar cells, batteries

With Temisat (Telespazio Micro Satellite) Telespazio aimed to develop a two satellite microsatellite system for commercial VHF/UHF remote data collection.

The satellite is cubic shaped by 350 × 350 × 350 mm and weighs 42 kg. It generates 65 W maximum power, and is spin stabilized employing two magnetic coils. The integration, tests and launch support was by Kayser-Threde GmbH, Munich Germany. It offers data collection and distribution for autonomous networks and environmental monitoring, and carries relaying instruments to uplink and downlink weather data from the Mediterranean and adjacent areas obtained by about 50 ground stations. It carried a Store and Forward transponder with 2 × 8.5MByte capacity.

Temisat 1 was launched on the 30th of August 1993 on a Tsiklon-3 launcher from Plesezk, into a 950 km 82.5° inclined orbit. The Italian micro-satellite, was released from Meteor-2 21 at 16:22 UT into a 980 km × 945 km, 82.5° orbit. It was procured by Telespazio SpA Rome Italy.

TEMISAT 1 was expected to operate 3-5 years but failed in the Fall of 1994.

Plans called for launch of a second satellite in mid 1995, but was never launched. This satellite was tranferred to the Technical University of Delft as Delfi 0 for educational purposes.

Satellite COSPAR Date LS Launch Vehicle Remarks
TEMISAT 1993-055B 1993-08-31 PKMTR Tsiklon-3 with Meteor-2 21