Report of ADEOS Initial Mission Checkout
Haruhisa Shimoda, Yoshifumi Yasuoka and Ryuji matsuoka
Earth Observation Research Center, National Space Development Agency of Japan
Reppongi First Building, 1-9-9, Reoppongi, Minato-ku, Tokyo 106, JAPAN
Phone : +81-3224-7040, Fax : +81-3-3224-7051
Abstract
The national Space Development Agency of Japna (NASDA) successfully launched the Advanced Earth Observing Satellite (ADEOS0S) at 10:53 a.m.(JST) / 01:53 a.m. (UT) on August 17, 1996 from Taneagashima Space Center. ADEOS was placed into the final proper orbit on September 8 and the function of the bus system and the mission instruments are now being checked out. The initial mission checkout of ADEOS will continue for 90 days until the middle of November. This paper report the status of ADESOS as of September 24, 1996.
1.Launch
The National Space Development Agency of Japan (NASDA) launced the forth H-II Launch Vehicle from Tanegashima space Center with the Advanced Earth Observing Satellite (ADEOS) and Japan Amateur Satellite-2 (JAS-2) on board at 10:53 a.m. (UT) on August 17, 1986. ADEOS was separated approximately 15 minutes 49 seconds after the launched and ADEOS was inserted into the orbit as planned.
Figure- 1 Lanuch of ADEOS
Figure-2 ADEOS
Table-1 Sensors onboard ADEOS
| Sensor | Sensor Provider |
| OCTS | NASDA | Japan |
| AVNIR | NASDA | Japan |
| IMG | MITI | Japan |
| ILAS | EA | Japan |
| RIS | EA | Japan |
| NSCAT | NASA | USA |
| TOMS | NASA | USA |
| POLDER | CNES | France |
ADEOS is the largest satellite Japan has ever developed having dimensions of 4m x 4m x 5m. When the NASSA Scattermeter (NSCAT) antenna and the solar array paddle are deployed, it has a span of 11 m in the flight direction and 29m in the directing to its perpendicular. ADEOS has a launch mass of approximately 3,500 kg. The main objective of ADEOS is to contribute to elucidation of phenomena of the earth through integrated observation of geophysical parameters using a number of sensors. There are eight sensors listed in Table 1- aboard ADEOS.
In the critical phase of the launch, ADESO completed the followings:
- Deployment of the solar array paddle
- Tracking the Sun
- Deployment of the NASA Scattermeter (NSCAT) antennas
- Dep of the Inter Orbital Communication Subsystem (IOCS) antenna
- Establishment of three axis attitude
- The critical phase of ADEOS finished after 22nd revolution on august 19, 1996. 19,1996 NASDA started verifying the function of ADEOS from August 19.
