Encyclopedia Astronautica
Kayser-Threde


German manufacturer of spacecraft. Kayser-Threde, Munich, Germany.

Location: Munich.

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Associated Countries
Associated Spacecraft
  • GFZ-1 German earth geodetic satellite. 2 launches, 1995.04.19 (GFZ-1) and 1998.07.10 (WESTPAC). GFZ-1 was a geodetic satellite designed to improve the current knowledge of the Earth's gravity field. More...
  • Mirka German re-entry vehicle technology satellite. One launch, 1997.10.09. German miniature re-entry vehicle attached to exterior of Russian Resurs satellite. After release from Resurs landed in Kazakhstan Oct 23. More...
  • MAQSAT European technology satellite. 4 launches, 1997.10.30 (MAQSAT-H/TEAMSAT) to 2005.02.12 (Maqsat 3). MAQSATs were mass model and technology satellites built by Kayser-Threde, Munich, and lofted during the test flights of the Ariane 5. More...

Associated Engines
  • TIROC Kayser N2O4/MMH rocket engine. 1 N. Satellite orientation. Isp=303s. Tangential Injection and Rotational Combustion, the world's smallest thruster burning monomethylhydrazine and nitrogen tetroxide. More...

See also

Kayser-Threde Chronology


1997 October 9 - . 17:59 GMT - . Launch Site: Plesetsk. Launch Complex: Plesetsk LC43/3. LV Family: R-7. Launch Vehicle: Soyuz 11A511U.
  • Foton 11 - . Payload: Foton s/n 11. Nation: Russia. Agency: RAKA. Manufacturer: Kayser-Threde. Class: Materials. Type: Materials science satellite. Spacecraft: Foton. Duration: 13.63 days. Decay Date: 1997-10-23 . USAF Sat Cat: 25006 . COSPAR: 1997-060A. Apogee: 363 km (225 mi). Perigee: 218 km (135 mi). Inclination: 62.8000 deg. Period: 90.30 min. Summary: Microgravity experiments. Landed in Kazakhstan Oct 23..
  • Mirka - . Nation: Germany. Agency: DLR. Manufacturer: Kayser-Threde. Class: Technology. Type: Re-entry vehicle technology satellite. Spacecraft: Mirka. Decay Date: 1997-10-23 . USAF Sat Cat: 25006 . COSPAR: 1997-060xx. Apogee: 363 km (225 mi). Perigee: 218 km (135 mi). Inclination: 62.8000 deg. Period: 90.30 min. Summary: Landed in Kazakstan Oct 23.

1997 October 30 - . Launch Site: Kourou. Launch Complex: Kourou ELA3. LV Family: Ariane 5. Launch Vehicle: Ariane 5G. LV Configuration: Ariane 5G V101 (502).
  • MAQSAT-H/TEAMSAT - . Payload: MAQSAT-H. Nation: Europe. Agency: ESA. Manufacturer: Kayser-Threde. Class: Technology. Type: Navigation technology satellite. Spacecraft: MAQSAT. USAF Sat Cat: 25023 . COSPAR: 1997-066A. Apogee: 26,504 km (16,468 mi). Perigee: 545 km (338 mi). Inclination: 7.6000 deg. Period: 465.70 min. Summary: Dummy communications satellite instrumented to report the actual payload bay environment during launch. It included the TEAMSAT technology experiment payload, developed by ESTEC.
  • MAQSAT-B/EPS - . Payload: MAQSAT-B. Nation: Europe. Agency: ESA. Manufacturer: Kayser-Threde. Class: Technology. Type: Navigation technology satellite. Spacecraft: MAQSAT. USAF Sat Cat: 25024 . COSPAR: 1997-066B. Apogee: 26,549 km (16,496 mi). Perigee: 541 km (336 mi). Inclination: 7.6000 deg. Period: 466.40 min. Summary: Dummy satellite in the lower bay of the SPELTRA dual launch adapter..

1998 October 21 - . 16:37 GMT - . Launch Site: Kourou. Launch Complex: Kourou ELA3. LV Family: Ariane 5. Launch Vehicle: Ariane 5G. LV Configuration: Ariane 5G V112 (503).
  • Maqsat 3 - . Nation: France. Agency: ESA. Manufacturer: Kayser-Threde. Class: Technology. Type: Navigation technology satellite. Spacecraft: MAQSAT. USAF Sat Cat: 25503 . COSPAR: 1998-059A. Apogee: 35,491 km (22,053 mi). Perigee: 1,017 km (631 mi). Inclination: 7.5000 deg. Period: 641.20 min. Maqsat 3 was an instrumentation package used to monitor performance of the Ariane 5 booster. At T+12:43 the Speltra adapter cover separated revealing Maqsat-3. At T+15:14 the EPS stage Aestus engine ignited and burned until T+31:00. At this point on a normal mission the satellite would separate from the EPS, but to avoid creating space debris Maqsat remained attached to the EPS. The EPS/Maqsat-3 was placed in a 1027 km x 35863 km x 7.0 degree geostationary transfer orbit.

2005 February 12 - . 21:03 GMT - . Launch Site: Kourou. Launch Complex: Kourou ELA3. LV Family: Ariane 5. Launch Vehicle: Ariane 5ECA. LV Configuration: Ariane 5 EC-A V164 City of Bremen.
  • Maqsat-B2 - . Mass: 3,622 kg (7,985 lb). Nation: Europe. Agency: ESA. Manufacturer: Kayser-Threde. Class: Technology. Type: Navigation technology satellite. Spacecraft: Maqsat. USAF Sat Cat: 28543 . COSPAR: 2005-005B. Apogee: 35,409 km (22,002 mi). Perigee: 258 km (160 mi). Inclination: 6.7000 deg. Period: 624.90 min. Summary: Maqsat was a test payload built by Kayser-Threde to study the Ariane 5ECA launch environment. Remained attached to the upper stage..

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