| Koji S. Kawabata | Hiroshima Univ | Optics / Mechanics / Software |
| Osamu Nagae (*5) | Hiroshima Univ | Detector (setup and evaluation) |
| Shingo Chiyonobu (*1) | Hiroshima Univ | Mechanics (design) |
| Hiroyuki Tanaka (*3) | Hiroshima Univ | Mechanics (setup) / Control system |
| Tomoyuki Komatsu (*6) | Hiroshima Univ | Control software / Calibration |
| Takaki Katsutoshi | Hiroshima Univ | Control software / Calibration |
| Hidehiko Nakaya | NAOJ | Detector / CCD control system | |
| Mariko Uehara(Suzuki) (*2) | Nagoya Univ | Advisor (Mechanics) |
| Yukiko Kamata | NAOJ | Advisor (CCD, dewer) |
| Satoshi Miyazaki | NAOJ | Advisor (CCD, dewer) |
| Hisashi Miyamoto (*4) | Hiroshima Univ | Software |
| Takuya Yamashita | NAOJ | Advisor |
| Makoto Uemura | Hiroshima Univ | Advisor |
| Takashi Ohsugi | Hiroshima Univ | Advisor |
| Shuji Sato | Nagoya Univ | Advisor |
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