picture of the encyclopedia
previous next
Version 0.81 comes with a new web design! Please allow popups for navigation.


Advanced Land Observing Satellite, also called Daichi


Designation 28931 / 06002A
Launch date 24 Jan 2006
Country of origin Japan
Operator NASDA
Mission Remote sensing
Perigee/Apogee 691 km, sunsynchronous
Inclination 98.2°
Cycle 46 days
Launch vehicle H2A #15

High resolution JERS Will be able to relay through DRTS W.

Experienced some computer glitches right after launch. Experienced data download problems because loss of sync.
In Jan 2008, it is revealed the data provided by the satellite is in fact useless because of inaccurate attitude control and picture compression-caused artefacts.

Conducted experiments to download in real time via TDRS 10.

End of life

Out of service 21 Apr 2011
Cause experienced an abrupt power loss

External resources

sat-index articles



Technical data


Prime contractor  
Mass at launch 3900 kg
Mass in orbit  
Dimension 22 m long
Solar array  
DC power 7000 W
Design lifetime  

Onboard storage: MDR, 706 Gb

Panchromatic Remote sensing Instrument for Stereo Mapping (PRISM)

Wavebands 0.52-0.77 nm
Swath width 70 km (35 km for the inclined cameras)
Resolution 2.5 m

Three identical cameras, one directly towards nadir, one at 24 degrees forward-inclined and another at 24 degrees backward-inclined. Image progression is entailed by the satellite motion, not by scanning.

Advanced Visible and Near Infrared Radiometer (AVNIR-2)

Wavebands 0.42-0.50 µm
0.52-0.60 µm
0.61-0.69 µm
0.76-0.89 µm
Swath width 70 km
Resolution 10 m
Orientable. Visible and near IR

Phased Array L-band Synthetic Aperture Radar (PALSAR)

Swath width 40 to 350 km
Resolution 100 to 7 m
Orientable, 1270 MHz

© TBS Internet, all rights reserved. All reproduction, copy or mirroring prohibited. Legal notice
francais anglais contact