TYC 3762-00788-1(mag10.0) by (4460)Bihoro on 2018 Dec. 18

** Prediction: 
Long.: 143o 00' 00" E, Lat.: 43o 02' 44" N
PredTime:    13h 04m 49s

**** Successful observations:
Observer:    Hidetoshi Yoshida  (JOIN:18606,18616)
Place:       Otofuke, Hokkaido, Japan
Long.: 143o 11' 55.6" E, Lat.: 42o 57' 08.3" N, Height: 50m (JGD2000=WGS84)
Method:      VCR, 12cm F5 Refractor, WAT-120N+(Slow shutter 8Fr), Limovie
Time signal: IOTA-VTI
Result:      D 13h 04m 46.112s +/-0.014s
             R 13h 04m 47.291s +/-0.017s
             (WAT-120N+ delay corrected)

** Negative observations:
Observer:    Masaki Kouda  (JOIN:18604)
Place:       Hachinohe, Aomori, Japan
Long.: 141o 36' 48.1" E, Lat.: 40o 29' 53.6" N, Height: 86m (JGD2000=WGS84)
Method:      Sound recorder, 20cm F4 Newtonian, Nikon Df(ISO3200)
Time signal: NTP,Mobile phone

Observer:    David Dunham, Joan Dunham  (JOIN:18693)
Place:       Fountain Hills, AZ, USA
Long.: 111o 42.931' W, Lat.: 33o 37.487' N, Height: 499m (JGD2000=WGS84)
Method:      Video, photo or photoelectric, 25.4cm F2 Dobsonian, Watec 910HX
Time signal: IOTA-VTI