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The VELOX-C1 mission is a Singaporean experimental microsatellite mission to study tropical climates.

VELOX-C1 will use of a special technique known as radio occultation and advanced algorithms, to obtain weather data such as the upper atmospheric temperature, humidity and pressure, which are useful for long term climate studies. Radio occultation makes use of the radio signals transmitted from the GPS satellites 20,000 km above the Earth. Using specially-designed GPS receivers, VELOX-CI can detect these signals for a short duration, even if there is no line of sight due to the bending of these signals by the atmosphere.

The payload consists of:

  • GPS Occultation (primary experiment)
  • Experimental RF Probe
  • Other experimental missions: e.g. Altitude determination with GPS

VELOX C1 is scheduled for launch in Q4 2015 as a secondary payload on an Indian PSLV-CA launch vehicle and will be flying in a near equatorial orbit of 550 km altitude with around 15 inclination.

Nation: Singapore
Type / Application: Technology
Operator: Nanyang Technological University, Singapore
Contractors: Nanyang Technological University, Singapore
Propulsion: None
Power: 2 deployable fixed solar arrays, batteries
Mass: 123 kg
Orbit: 533 km × 549 km, 15
Satellite COSPAR Date LS Launch Vehicle Remarks
VELOX C1 2015-077A 16.12.2015 Sr FLP PSLV-CA with TeLEOS 1, Kent Ridge 1, VELOX 2, Athenoxat 1, Galassia


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