TYC 1310-02435-1 by Saturn's satellite Tethys on 2002 Dec. 15

Successful observations:
Observer:    Hiromi Hamanowa, Hiroko Hamanowa (JOIN:4591,4679)
Place:       Kooriyama, Fukushima, Japan
Long.: 140o 26' 00.51" E, Lat.: 37o 27' 26.76" N, Height: 260m (Tokyo Datum)
Long.: 140o 25' 48.41" E, Lat.: 37o 27' 37.72" N,  (WGS84)
Method:      CCD Video, D=40cm, F4.5
Time signal: BPM
Result(UTC): D 18:56:52.190  +/-0.03Fr
             R 18:57:31.323  +/-0.03Fr

Observer:    Mitsuru Kashiwagura (JOIN:4592)
Place:       Ooe, Yamagata, Japan
Long.: 140o 08' 52.4" E, Lat.: 38o 22' 36.9" N, Height: 182m (Tokyo Datum)
Long.: 140o 08' 40.25"E, Lat.: 38o 22' 47.47"N,   (WGS84)
Method:      Video, WATEC 902H, 30cm Schmidt Cass.
Time signal: GHS clock + TIVi
Result(UTC): D begins 18:56:54.71
             D ends   18:56:54.78
             R begins 18:57:34.79
             R ends   18:57:34.85

Observer:    Hideo Takashima (JOIN:4594,4609)
Place:       Kashiwa, Chiba, Japan
Long.: 139o 57' 22.62"E, Lat.:  35o 50' 36.71"N   (Tokyo Datum)
Long.: 139o 57' 10.9" E, Lat.: 35o 50' 48.3" N, Height: 39m (WGS84)
Method:      WAT-100N, CCD Video, D=21cm, F12
Time signal: GHS clock + TIVi
Result(UTC): D 18:56:50.65
             R 18:57:23.61
             (There were many clouds)

Observer:    Akira Yaeza (JOIN:4595)
Place:       Hitachi, Ibaraki, Japan
Long.: 140o 38' 00.54"E, Lat.: 36o 32' 07.86"N,    (Tokyo Datum)
Long.: 140o 37' 48.50"E, Lat.: 36o 32' 19.22"N, Height: 20m (WGS84)
Method:      Visual, Celestron C8, 133x
Time signal: Telephone
Result(UTC): D 18:56:51.8
             R 18:57:28.1
             P.E. corrected

Observer:    Akie Hashimoto (JOIN:4601)
Place:       Chichibu, Saitama, Japan
Long.: 139o 02' 11" E, Lat.: 35o 57' 53" N, Height: 355m (Tokyo Datum)
Long.: 139o 01' 59.6"E,Lat.: 35o 58' 04.5"    (WGS84)
Method:      Visual, 21cm Cass., 210x
Time signal: Telephone, Stop Watch
Result(UTC): D unknown
             R 18:57:27.79

Observer:    Katsuhiko Kitazaki (JOIN:4605,4729)
Place:       Musashino, Tokyo, Japan
Long.: 139o 33' 52.8" E, Lat.: 35o 42' 25.3" N, Height: 66m (Tokyo Datum)
Long.: 139o 33' 41.2"E, Lat.: 35o 42' 46.9"N    (WGS84)
Method:      Video, WAT-100N, 40cm, F10, Reducer (F5)
Time signal: GHS Clock + TIVi
Result(UTC): D begins 18:56:51.59 +/-0.03
             D ends   18:56:51.62 +/-0.03
             R        18:57:24.65 +/-0.06

Observer:    Eisaku Katayama (JOIN:4623,4650)
Place:       Mitaka, Tokyo, Japan
Long.: 139o 33' 33.8"E, Lat.: 35o 41' 41.3",Height:62m(Tokyo Datum)
Long.: 139o 33' 22.2"E, Lat.: 35o 41' 52.9"   (WGS84)
Method:      Video, II-CCD, Celestron C-14 (F11)
Time signal:
Result(UTC): D ends   18:56:52 +/- 0.3
             R begins 18:57:25 +/- 0.3
             (There were many clouds)

Negative observations:
Observer:    Masayuki Uchiyama  **** (addition 2004.1.4)
Place:       Owase, Mie, Japan
Long.: 136o 11' 39" E, Lat.: 34o 04' 37" N, Height: 15m (JGD2000=WGS84)
Method:      VCR, 33cm F5 Newtonian, x2 Teleconverter, WAT-100N
Time signal: TEL, TIVi