TYC 5631-00932-1(mag10.5) by (451)Patientia on 2020 May. 02

** Prediction: 
Long.:  138o 00' 00" E, Lat.: 36o 25' 47" N
PredTime:    13h 50m 22.2s

**** Successful observations:
Observer:    Akie Hashimoto  (JOIN:20087)
Place:       Chichibu, Saitama, Japan
Long.: 139o 01' 59.6" E, Lat.: 35o 58' 04.5" N, Height: 355m (JGD2000=WGS84)
Method:      Visual, 40cm Cass, x290
Time signal: GHS, Stop watch
Result:      D 13h 50m 16.67s (P.E. 0.4s corrected)
             R unknown

Observer:    Reijin Aikawa    (JOIN:20093)
Place:       Sakado, Saitama, Japan
Long.: 139o 26' 50.2" E, Lat.: 35o 56' 57.2" N, Height: 21.6m (JGD2000=WGS84)
Method:      Visual, 20.3cm F10 Schmidt Cass, x317
Time signal: TEL
Result:      D 13h 50m 14.3s (P.E. 0.6s corrected)
             R 13h 50m 33.0s (P.E. 0.6s corrected)
Note: The timing is low certainty.

Observer:    Akira Yaeza  (JOIN:20094)
Place:       Hitachi, Ibaraki, Japan
Long.: 140o 36' 10.34" E, Lat.: 36o 31' 28.71" N, Height: 234.8m (JGD2000=WGS84)
Method:      Visual, 21.2cm Schmidt Cass, x200, Sound recorder.
Time signal: TEL.
Result:      D 13h 50m 10.5s +/-0.1s (P.E. 0.5s corrected)
             R 13h 50m 14.0s +/-0.1s (P.E. 1.0s corrected)

Observer:    Katsumasa Hosoi  (JOIN:20095)
Place:       Miharu, Fukushima, Japan
Long.: 140o 26' 04.2" E, Lat.: 37o 25' 36.7" N, Height: 274m (JGD2000=WGS84)
Method:      VCR, 13cm F5 Newtonian, WAT-120N(slow shutter 16Fr), Limovie
Time signal: GHS-OSD
Result:      D 13h 49m 57.806s +/-0.242s
             R 13h 50m 06.119s +/-0.136s
             (WAT-120N delay corrected)

Observer:    Masayuki Ishida   (JOIN:20096,20117)
Place:       Tsuruga, Fukui, Japan
Long.: 136o 05' 39.1" E, Lat.: 35o 44' 27.8" N, Height: 1m (JGD2000=WGS84)
Method:      VCR, 20cm F10 Schmidt Cass,F6.3Reducer, WAT-120N(Slow shutter 16Fr), Limovie
Time signal: GHS-OSD
Result:      D1 13h 50m 23.244s +/-0.065s
             D2 13h 50m 32.320s +/-0.039s
             R1 13h 50m 39.266s +/-0.027s
             R2 13h 50m 52.597s +/-0.032s
             (WAT-120N delay corrected)
Note: Stepwise event is occurred at Dis-appearance and Re-appearance.

Observer:    Hiroyuki Watanabe  (JOIN:20098,20107)
Place:       Tarui, Gifu, Japan
Long.: 136o 29' 43.7" E, Lat.: 35o 23' 41.2" N, Height: 105m (JGD2000=WGS84)
Method:      Movie, 35cm F11 Schmidt Cass, F2.1 Reducer, ASI290MC(exp0.027s), Binning:2
Time signal: GPS, PC, Satk
Result:      D1 13h 50m 25.690s +/-0.054s
             D2 13h 50m 31.445s +/-0.024s
             R1 13h 50m 35.088s +/-0.018s
             R2 13h 50m 50.589s +/-0.036s
Note: Stepwise event is occurred at Dis-appearance and Re-appearance.

Observer:    Hidehito Yamamura  (JOIN:20099)
Place:       Maibara, Shiga, Japan
Long.: 136o 17' 40.3" E, Lat.: 35o 19' 41.8" N, Height: 92m (JGD2000=WGS84)
Method:      Movie, 13cm F7.7 Refractor, ASI290MC(exp0.050s), Binning:2, Limovie
Time signal: GHS-OSD,Satk,TEL
Result:      D1 13h 50m 29.212s +/-0.017s (0.31mag drop)
             D2 13h 50m 32.831s +/-0.017s (1.2mag drop against non occultation)
             R1 13h 50m 34.691s +/-0.017s (0.31mag drop against non occultation)
             R2 13h 50m 51.478s +/-0.017s
Note: Stepwise event is occurred at Dis-appearance and Re-appearance.

Observer:    Kazumi Terakubo  (JOIN:20100,20131)
Place:       Aikawa, Kanagawa, Japan
Long.: 139o 15' 30.73" E, Lat.: 35o 32' 49.36" N, Height: 251m (JGD2000=WGS84)
Method:      Visual, 30cm Newtonian, x150, Voice recorder
Time signal: BPM
Result:      D1 unknown
             D2 13h 50m 17.8s (P.E. 0.4s corrected)
             R1 13h 50m 21.8s (P.E. 0.4s corrected)
             R2 13h 50m 37.5s (P.E. 0.4s corrected)

Observer:    Masaru Yamashita  (JOIN:20104,20122)
Place:       Ikeda, Osaka, Japan
Long.: 135o 26' 23.6" E, Lat.: 34o 49' 34.6" N, Height: 79m (JGD2000=WGS84)
Method:      Movie, 35.5cm F10 Schmidt Cass, F7 Reducer, ASI290MC(exp 0.04s), SharpCap
Time signal: PC, GPS LED
Result:      D 13h 50m 50.632s +/-0.02s (brightness count 600)
             R 13h 50m 53.244s +/-0.02s (brightness count 1000)

Observer:    Norio Sasanuma  (JOIN:20108,20136,20183)
Place:       Toshima-ku, Tokyo, Japan
Long.: 139o 44' 35.8" E, Lat.: 35o 44' 14.2" N, Height: 31m (JGD2000=WGS84)
Method:      VCR, 25cm Mewlon-300CRS, eyepiece60mm ,WAT-910HX
Time signal: TEL
Result:      D1 13h 50m 00.20s +/-0.03s
             D2 13h 50m 11.90s +/-0.03s
             R1 13h 50m 20.30s +/-0.03s
             R2 13h 50m 31.87s +/-0.03s
Note: Stepwise event is occurred at Dis-appearance and Re-appearance.
Note: Timings are analyzed by Miyoshi Ida.

Observer:    Hiroyuki Tomioka  (JOIN:20109,20125) 
Place:       Hitachi, Ibaraki, Japan
Long.: 140o 41' 08.9" E, Lat.: 36o 38' 33.2" N, Height: 33m (JGD2000=WGS84)
Method:      VCR, 45cm Reflector, WAT-120N+RC(Slow shutter 16Fr), Limovie
Time signal: IOTA-VTI, GHS
Result:      D1 13h 49m 53.98s
             D2 13h 50m 08.67s
             R1 13h 50m 11.84s
             R2 13h 50m 19.34s
             (Frame error -0.275s corrected)

Observer:    Akira Asai  (JOIN:20110,20129)
Place:       Inabe, Mie, Japan
Long.: 136o 31' 24.7" E, Lat.: 35o 10' 14.7" N, Height: 187m (JGD2000=WGS84)
Method:      Movie, 35.5cm F11 Schmidt Cass, ASI290MC(exp0.027s), Binning:2, Limovie
Time signal: PC, Satk, LED
Result:      D 13h 50m 32.794s +/-0.008s (brightness count 3280)
             R 13h 50m 50.232s +/-0.006s (brightness count 4460)
Note: Sure of 1 time decline event.

Observer:    Shigeo Uchiyama  (JOIN:20111,20127,20134)
Place:       Kashiwa, Chiba, Japan
Long.: 139o 58' 50.67" E, Lat.: 35o 52' 08.44" N, Height: 20m (JGD2000=WGS84)
Method:      VCR, 25cm F10 Schmidt Cass, eyepiece40mm/8mm collimate ,WAT-910HX(Slow shutter2Fr)
Time signal: GHS,TIVi
Result:      D1 13h 49m 58.74s +/-0.20s (a partly dorp)
             D2 13h 50m 10.90s +/-0.20s (still drop)
             R1 13h 50m 19.13s +/-0.20s (a partly brighter)
             R2 13h 50m 30.16s +/-0.20s (return to origin brightness)
Note: Stepwise event is occurred at Dis-appearance and Re-appearance.

Observer:    Katsuhiko Kitazaki  (JOIN:20113)
Place:       Musashino, Tokyo, Japan
Long.: 139o 33' 41.3" E, Lat.: 35o 42' 36.9" N, Height: 66m (JGD2000=WGS84)
Method:      VCR, 40cm F10.1 Cass, x0.28Reducer, WAT-100N 
Time signal: GHS-OSD
Result:      D1 13h 50m 01.515s +/-0.017s (Measurement Value down 654.1 to 529.1)
             D2 13h 50m 13.226s +/-0.017s (Measurement Value down 547.3 to 234.5)
             R1 13h 50m 21.568s +/-0.017s (Measurement Value up 251.9 to 377.1)
             R2 13h 50m 33.313s +/-0.017s (Measurement Value up 542.2 to 812.0)
Note: Stepwise event is occurred at Dis-appearance and Re-appearance.

Observer:    Hayato Watanabe  (JOIN:20014,20143)
Place:       Inabe, Mie, Japan
Long.: 136o 33' 33.9" E, Lat.: 35o 07' 10.2" N, Height: 92m (JGD2000=WGS84)
Method:      VCR, 13cm F7.7 Refractor, WAT-120N(slow shutter 16Fr)
Time signal: GHS-OSD
Result:      D1 13h 50m 22.344s +/-0.096  (low certainty)
             R2 13h 50m 25.716s +/-0.096s
             D3 13h 50m 33.165s +/-0.125s
             R3 13h 50m 49.954s +/-0.100s
Note: Stepwise event is occurred at Dis-appearance and Re-appearance.
Note: 2 times decline.

Observer:    Toshihiro Horaguchi  (JOIN:20119)
Place:       National Museum of Nature and Science, Tsukuba, Ibaraki, Japan
Long.: 140o 06' 40.7" E, Lat.: 36o 06' 05.1" N, Height: 40m (JGD2000=WGS84)
Method:      VCR, 50cm F12 Cass, x0.5Reducer, WAT-910HX, Limovie
Time signal: GHS-OSD
Result:      D1 13h 49m 57.664s +/-0.017s (brightness count 2760)
             D2 13h 50m 09.759s +/-0.017s (brightness count 1157)
             R1 13h 50m 17.900s +/-0.017s (brightness count 2640)
             R2 13h 50m 27.847s +/-0.017s (brightness count 4160)
             (WAT-910HX delay -0.017s corrected)
Note: Stepwise event is occurred at Dis-appearance and Re-appearance.

Observer:    Miyoshi Ida  (JOIN:20138,20140)
Place:       Higashiomi, Shiga, Japan
Long.: 136o 11' 04.6" E, Lat.: 35o 05' 54.4" N, Height: 125m (JGD2000=WGS84)
Method:      Movie, 20cm F10 Schmidt Cass, F3.3+F6.3Reducer, ASI290MM(exp0.02s), Binning:2, Limovie
Time signal: Mobile phone, GPS LED
Result:      D1 13h 50m 18.31s +/-0.02s (possibly suprious)
             D2 13h 50m 23.29s +/-0.02s (possibly suprious)
             R1 13h 50m 36.14s +/-0.02s
             R2 13h 50m 51.56s +/-0.02s

Observer:    Yuji Nakamura  (JOIN:20144)
Place:       Kameyama, Mie, Japan
Long.: 136o 25' 26.7" E, Lat.: 34o 51' 13.4" N, Height: 72m (JGD2000=WGS84)
Method:      VCR, 20cm F6.3 Schmidt Cass,F3.5 Reducer, WAT-120N(Slow shutter 4Fr)
Time signal: GHS
Result:      D 13h 50m 38.23s
             R 13h 50m 49.00s

Observer:    Kojiro Nakamura  (JOIN:20167,20173)
Place:       Koshigaya, Saitama, Japan
Long.: 139o 48' 26.8" E, Lat.: 35o 51' 58.5" N, Height: 16m (JGD2000=WGS84)
Method:      Movie, 13cm F5 Newtonian, ASI224MC(exp0.0333s), Binning:2, Limovie
Time signal: GPS LED
Result:      D1 13h 50m 00.0247s
             D2 13h 50m 12.2457s
             R1 13h 50m 20.5377s
             R2 13h 50m 31.6277s
Note: Reported by Toshio Hirose.
Note: Timings are analyzed by Miyoshi Ida.

Observer:    Shin Inoue  (JOIN:20180,20193)
Place:       Kyoto Kyoto, Japan
Long.: 135o 47' 32.2" E, Lat.: 35o 01' 59.1" N, Height: 80.9m (JGD2000=WGS84)
Method:      Drift Scan, 6cm F6.2 Refractor, Canon EOS70D ISO500
Time signal: Stop watch, moble phone
Result:      D 13h 50m 40.57s +/-1.0s
             R 13h 50m 48.79s +/-1.0s
Note: Reported by Hiroki Fukuyama.


** Negative observations:
Observer:    Takashi Terada  (JOIN:20091)
Place:       Kitanagoya, Aichi, Japan
Long.: 136o 52' 56.68" E, Lat.: 35o 15' 07.91" N, Height: 20m (JGD2000=WGS84)
Method:      Visual, 18cm Cass
Time signal: Phone, Stop watch
Note: Though thin cloud.

Observer:    Hiraku Togashi  (JOIN:20130)
Place:       Oe, Yamagata, Japan
Long.: 140o 12' 24.7" E, Lat.: 38o 22' 42.5" N, Height: 117m (JGD2000=WGS84)
Method:      VCR, 13cm F7.7 Refractor, WAT-120N+(Alow shutter 16Fr)
Time signal: IOTA-VTI

Observer:    Mitsuru Kashiwagura  (JOIN:20132,20133)
Place:       Oe, Yamagata, Japan
Long.: 140o 08' 40.3" E, Lat.: 38o 22' 47.5" N, Height: 180m (JGD2000=WGS84)
Method:      VCR, 30.5cm F10 Schmidt Cass, x0.64 Reducer, WAT-120N(Sloe shutter 8Fr)
Time signal: IOTA-VTI