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Mission typeTechnology
OperatorShinshu University
COSPAR ID2014-009A Edit this at Wikidata
SATCAT no.39572
WebsiteGinrei Mission Site
Spacecraft properties
ManufacturerShinshu University
Launch mass35 kilograms (77 lb)
Start of mission
Launch date27 February 2014, 18:37 (2014-02-27UTC18:37Z) UTC[1]
RocketH-IIA 202
Launch siteTanegashima Yoshinobu 1
End of mission
Decay date24 November 2014 (2014-11-25)
Orbital parameters
Reference systemGeocentric
RegimeLow Earth
Perigee altitude387 kilometres (240 mi)
Apogee altitude404 kilometres (251 mi)
Inclination65 degrees
Period92.47 minutes
Epoch28 February 2014[2]

Ginrei or ShindaiSat was a 400x400x450mm cube-like microsatellite intended to text experimental visible light communication.[3] The satellite is made in Shinshu University (Japan). The ground station was completed by 18 March 2014 and attempts to communicate with satellite have started the same day. 2-way optical communication with ground station is planned. Also, advanced attitude control using visible light communication is planned as well.

Mission results

The Ginrei optical signals were received 10 seconds per pass, averaged over 56 passes over the control station.[4] The narrow beam and infrequent operation of optical transmitter have resulted in severe disappointment in amateur optical tracking community.[5]

See also


  1. ^ McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 1 January 2015.
  2. ^ McDowell, Jonathan. "Satellite Catalog". Jonathan's Space Page. Retrieved 1 January 2015.
  3. ^ "ShindaiSat (Ginrei)". Retrieved February 8, 2023.
  4. ^ "November 25, 2014 "Ginrei" mission completed (translated)". Retrieved February 1, 2023.
  5. ^ "Журнал наблюдений искусственных спутников Земли".