Puneet Varma (Editor)

Raijin 2

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Names
  
Rising-2SpriteSat

Operator
  
Tohoku University

SATCAT no.
  
39769

Inclination
  
97.9°

Period
  
1.6 hours

Launch date
  
24 May 2014

Mission type
  
Earth observation

COSPAR ID
  
2014-029D

Website
  
At tohoku.ac.jp

Inclination
  
97.9°

Launch mass
  
42 kg

Launch site
  
Tanegashima Space Center

Similar
  
Kosmos 2501, UniSat‑6, UAPSat‑1, BugSat 1, INVADER

Raijin-2 (Rising-2) is a Japanese micro-satellite launched in 2014. The satellite is built around a 10 cm diameter, 1m focal length Cassegrain telescope and features the following instruments:

Contents

  • HPT - main telescope with 5m resolution at nadir, operating in visible and near-infrared bands
  • BOL - bolometer array camera for cloud temperature measurement
  • WFC - wide field-of-view CCD camera
  • LSI-N and LSI-W - 2 CMOS medium field-of-view cameras for near-infrared imaging
  • VLF-ANT, R - radio antenna to receive signatures of lighting events

    • All instruments are powered by GaAs solar cells mounted on the spacecraft body, with estimated electrical power of 47.6W. The spacecraft features an unusual central-pillar bus, inherited from the Sprite-Sat satellite. The attitude control is done by means of reaction wheels and magneto-torquers, and qualified for 0.1 degrees angular accuracy.

    Launch

    RISING-2 was launched from Tanegashima, Japan, on 24 May 2014 by a H-IIA rocket.

    Mission

    The satellite is intended for atmosphere research, especially for gathering statistics on cloud formation and the occurrence of sprites in the upper atmosphere. Mission data are down-linked in S-band with maximal data rate of 38.4 kbit/s.

    References

    Raijin-2 Wikipedia
    (Text) CC BY-SA


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