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X-Sat [Satrec Initiative]

X-Sat is a microsatellite technology demonstration mission of CREST (Centre for Research in Satellite Technologies). CREST, a joint venture of NTU (Nanyang Technological University) and DSO National Laboratories Singapore, was established for this project.

The objective of the X-SAT mission is to demonstrate technology in support of high-resolution imaging capabilities and to analyze and implement onboard parallel processing algorithms, thereby demonstrating improved mission achievements for generally downlink-limited small satellite imaging missions.

The purpose of X-Sat is:

  • Earth observation and imaging for environmental applications such as monitoring of forest fires and ocean red tides, with a 10 m resolution multispectral (three spectral bands in the visible and near infrared spectrum) instrument as a primary payload.
  • satellite-based data acquisition/distribution and messaging using mobile terminals.

Also two secondary payloads are on board:

  • Parallel Processing Unit: for experimentation of COTS electronics and FPGAs to perform reliable imaging algorithmic functions (image selection, classification, compression) in space.
  • DLR GPS: A GPS receiver provided by DLR for on-board experimentation using XSAT micro-satellite mission.

A launch agreement between Antrix Corporation (ISRO) and NTU for a launch as a piggy back payload on a was signed on Jan. 24, 2003.

Nation: Singapore
Type / Application: Earth Observation, Technology
Operator: CREST (Centre for Research in Satellite Technologies)
Contractors: Satrec Initiative
Equipment: 3 band multi-spectral imager, DLR GPS, PPU
Configuration: SI-100 bus
Propulsion: None
Power: 2 deployable fixed solar arrays, batteries
Lifetime: 3 years
Mass: 105 kg
Orbit: 803 km × 823 km, 98.77
Satellite COSPAR Date LS Launch Vehicle Remarks
X-Sat 2011-015C 20.04.2011 Sr FLP PSLV-G (3) with Resourcesat 2, YouthSat


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