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SIMBA [Royal Meteorological Institute of Belgium]

SIMBA (Sun-earth Imbalance) is a Belgian 3U CubeSat, designed by the Royal Meteorological Institute of Belgiumw ith the participation of the Royal Meteorological Institute of Belgium, the University of Leuven and ISIS-Innovative Solutions In Space as a technology demonstration mission.

The satellite will have three objectives:

  • The scientific payloads objectives are to study the feasibility to monitor with the same instrument both the incoming solar radiation and the earths outgoing radiation. To achieve this, the main payload sensor is an electrical substitution cavity radiometer designed for the absolute measurement of total radiation. The cavity radiometer is normally pointing towards the earth for a good sampling of the earths outgoing radiation and will be occasionally pointing towards deep space and the sun for calibration.
  • The ADCS system is a newly developed system, including a non mission critical startracker, that will have its maiden flight in the SIMBA satellite. Two mission goals related to that are the in orbit testing of the ADCS system and the in orbit testing of the startracker subsystem.
  • Embed a FM transponder that will be accessible to the radio amateur community after the end of the nominal mission and at weekends.

The satellite was to be originally part of the QB50 constellation, but dropped out later. Launch into a sun synchroneous orbit is now planned for 2018.

Nation: Belgium
Type / Application: Technology
Operator: Royal Meteorological Institute of Belgium
Contractors: Royal Meteorological Institute of Belgium; ISIS (bus)
Configuration: CubeSat (3U)
Propulsion: None
Power: 2 deployable fixed solar arrays, solar cells, batteries
Mass: 4 kg
Orbit: 534 km × 536 km, 97.52°
Satellite COSPAR Date LS Launch Vehicle Remarks
SIMBA (ex QB50 BE02) 2020-061H 03.09.2020 Ko ELV Vega with Athena, ION-SCV 1, ESAIL, UPMSat 2, NEMO-HD, ŃuSat 6, GHGSat C1, Flock-4v 1, ..., 26, Lemur-2 112, ..., 119, SpaceBEE 10, ..., 21, FSSCat A, B, NAPA 1, TARS, EG 2, OSM 1 CICERO, DIDO 3, PICASSO, TRISAT, AMICal-Sat, TTÜ100


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