XI IV [ISSL]
Official name CUBESAT XI 5
Alternative name Cubesat XI-V
Cospar ID 2005-043F
Norad ID 28895
Launch date 2005-10-27
Launch site PKMTR
Launch vehicle Kosmos-3M
Country/Organization Japan
Type application Technology
Operator University of Tokyo
RCS size SMALL
Decay date ON ORBIT
Period (min) 97.89
Inclination (deg) 98.25
Perigee (km) 648
Apogee (km) 668
Eccentricity 0.0151975683890578
Mean motion (revs. per day) 14.7103892123812
Semi-Major axis (km) 7036.135
Raan (deg) 289.9933
Arg of perigee (deg) 359.1529
Shape Box
Mass (kg) 1
Height (m) 0.1
Width (m) 0.1
Depth (m) 0.1
Span (m^2) 0.1
Contractors University of Tokyo
Propulsion None
Configuration CubeSat (1U)
Power Solar cells, batteries

The code name of ISSL's CubeSat is "XI" (X-factor Investigator). This derives from its cubic shape (XI means domino in Japanese).

The XI mission is on-orbit verifications of the technology necessary for super-small satellite system. Acquiring indispensable technology on spacecraft, such as communication, power and electronics, it will establish the development methodology of the small satellite. And by extensively using commercial-off-the-shell components, the total development cost will be drastically reduced and a database on the space-use of the COTS parts will be built. A number of Cubesat-XI prototypes have been built - the fourth is the first flight model with the fifth being its backup.

Satellite COSPAR Date LS Launch Vehicle Remarks
CUBESAT XI 4 2003-031J 2003-06-30 PKMTR Rokot-KM with MOST, MIMOSA, CanX 1, AAU-Cubesat, DTUSat, CUTE 1, QuakeSat, Monitor-E GVM
CUBESAT XI 5 2005-043F 2005-10-27 PKMTR Kosmos-3M with TopSat 1, China-DMC+4, Mozhayets 5, Sina 1, SSETI-Express, UWE 1, Ncube 2, Rubin 5-ASOLANT