Outline of MOS-1 Verification Program (MVP) 
Korehiro Maeda, Hiroyuki Wakabayashi,Kazuyuki Tasaki, 
Masanobu Shimada and Hideo Sato 
Earth Observation Center (EOC),National Space Development 
Agency of Japan (NASDA) 
1401 Ohashi,Hatoyama-machi,Hiki-gun,Saitama-ken,350-03 
Japan 
Commission I 
Abstract 
Marine Observation Satellite 1 (MOS-1) was successfully 
launched from Tanegashima Space Center,NASDA by N-i launch 
vehicle at 10:23 JST (1:23 UT) on Feb.19,1987. The MOS-1 has 4 
mission instruments:(1)Multi-Spectral Electronic Self Scanning 
Radiometer(MESSR) (2)Visible and Thermal Infrared Radiometer(VTIR) 
(3)Microwave Scanning Radiometer(MSR) and (4)Data Collection 
System Transponder (DCST).All mission instruments were found to be 
satisfactory during mission check period (three months after the 
launch) though there was interference problem in DCS due to the 
outer radio interference source which was resolved by changing 
the frequency of Data Collection Platform (DCP). 
NASDA planned and initiated MOS-1 Verification Program(MVP) 
to evaluate MOS-1 observation system since March,1987. NASDA is 
conducting MVP in collaboration with joint research 
organizations,domestic and foreign organizations. As a part of 
the MVP, NASDA conducted airborne experiments in summer and 
winter in several test sites in FY 1987 in Japan on passing days 
of MOS-1 and will conduct summer airborne experiment in FY 1988. 
The first symposium for MVP was successfully conducted by NASDA 
on Nov.10 and 11,1987 in Tokyo. The second symposium will be held 
in July 12,13 and 15,1988 in Tokyo Yubin Tyokin Kaikan in 
Hamamatsucho ,Tokyo near NASDA Headquarter and the third final 
Symposium will be held in February,1989. 
In this paper, the outline of MVP will be described and 
some initial results of MVP will be presented. 
Presented at the 16th ISPRS held in Kyoto, Japan in July 1- 
10,1988. 
98