cosmos.wikisort.org - Spacecraft

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:

• 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

This article does not cite any sources. (December 2015)

Raijin-2

Names	Rising-2 SpriteSat
Mission type	Earth observation
Operator	Tohoku University
COSPAR ID	2014-029D
SATCAT no.	39769
Website	At tohoku.ac.jp
Mission duration	8 years and 27 days (ongoing)
Spacecraft properties
Launch mass	42 kg (93 lb)
Start of mission
Launch date	03:05, May 24, 2014 (UTC) (2014-05-24T03:05Z)
Rocket	H-IIA 202
Launch site	Tanegashima Space Center
Orbital parameters
Reference system	Geocentric
Eccentricity	0.0013
Perigee altitude	629.8 km (391.3 mi)
Apogee altitude	647.4 km (402.3 mi)
Inclination	97.9°
Period	97.5 min

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.

See also

• 2014 in spaceflight

References

External links

• RISING-2 mission equipment
• eoPortal RISING-2 page

---