TYC 4708-01231-1(mag 11.4) by (909)Ulla on 2011 Feb. 3 **** Successful observations: Observer: Miyoshi Ida (JOIN:12599) Place: Higashiomi, Shiga, Japan Long.: 136o 12' 24.7" E, Lat.: 35o 06' 05.6" N, Height: 140m (JGD2000=WGS84) Method: VCR, 28cm F10 Schmidt Cass, x0.6 Reducer, WAT-120N+(Slow shutter 8Fr) Time signal: GPS, Time Imposer Result: D 11h 29m 11.25s +/-0.14s R 11h 29m 16.00s +/-0.14s (WAT-120N delay 0.275s corrected.) Observer: Yasukazu Ikari (JOIN:12600) Place: Moriyama, Shiga, Japan Long.: 135o 59' 23.8" E, Lat.: 35o 02' 59.1" N, Height: 105m (JGD2000=WGS84) Method: VCR, 25.4cm F4.3 Schmidt Cass, WAT-120N+ (slow shutter 2Fr), Limovie Time signal: GPS, VCR time inmpose Result: D 11h 29m 09.93s +/-0.07s R 11h 29m 15.70s +/-0.07s Observer: Akira Watanabe (JOIN:12610) Place: Sendai, Miyagi, Japan Long.: 140o 48' 58.3" E, Lat.: 38o 14' 00.4" N, Height: 105m (JGD2000=WGS84) Method: Visual, 31cm Reflector, Voice recorder Time signal: GHS Result: Duration 6.4sec Note: Absolute time of event hasn't been obtained due to trouble. Observer: Ikuya Yamanishi (JOIN:12631,12643) Place: Takaishi, Osaka, Japan Long.: 135o 27' 13.4" E, Lat.: 34o 31' 10.8" N, Height: 12m (JGD2000=WGS84) Method: VCR, 20cmF10 Schmidt Cass, TGv-M(slow shutter 8Fr) Time signal: GHS, TIVi Result: D 11h 29m 08.68s +/-0.27s R 11h 29m 11.22s +/-0.27s (TGv-M delay 0.275s corrected.) ** Negative observations: Observer: Reijin Aikawa (JOIN:12593) Place: Sakado, Saitama, Japan Long.: 139o 26' 50.4" E, Lat.: 35o 56' 56.5" N, Height: 21m (JGD2000=WGS84) Method: Visual, 20.3cm F10 Schmidt Cass, x206, Stop watch Time signal: TEL Observer: Hayato Watanabe (JOIN:12594) 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, TIVi Observer: Minoru Owada (JOIN:12596) Place: Hamamatsu, Shizuoka, Japan Long.: 137o 44' 23.0" E, Lat.: 34o 43' 07.0" N, Height: 17m (JGD2000=WGS84) Method: VCR, 25cm F12 Schmidt Cass, F9.3Reducer, WAT-120N(Slow shutter 8Fr) Time signal: GPS, TIVi Observer: Hideki Yoshihara (JOIN:12601) Place: Soja, Okayama, Japan Long.: 133o 38' 34.5" E, Lat.: 34o 39' 46.6" N, Height: 55m (JGD2000=WGS84) Method: VCR,20cm F8 Reflector, WAT-120N(Slow shutter 8Fr) Time signal: TEL, TIVi Observer: Naoto Tatsumi (JOIN:12603) Place: Akaiwa-Ryuten-obs, Akaiwa, Okayama, Japan Long.: 134o 00' 08" E, Lat.: 34o 53' 38" N, Height: 470m (JGD2000=WGS84) Method: VCR(Record failed), 40cm F12 Cass Time signal: BPM Note: Certainty 1/5(Probably failed observation) Observer: Kazuhisa Kageyama (JOIN:12604) Place: Kumamoto, Kumamoto, Japan Long.: 130o 45' 32.03" E, Lat.: 32o 48' 36.02" N, Height: 45m (JGD2000=WGS84) Method: VCR, 25cm F3.3 Newtonian, WAT-120N(Slow shutter 2Fr), UFOCapture, Limovie Time signal: NTP(Sakura-tokei) Observer: Kunio Kenmotsu (JOIN:12605) Place: Soja, Okayama, Japan Long.: 133o 44' 52.6" E, Lat.: 34o 41' 40.3" N, Height: 53m (JGD2000=WGS84) Method: VCR, 20cm F9 Reflector, x0.6Reducer, TGv-M(Slow shutter 8Fr), Limovie Time signal: GHS, TIVi Observer: Akira Asai (JOIN:12619) Place: Inabe, Mie, Japan Long.: 136o 31' 24.7" E, Lat.: 35o 10' 14.7" N, Height: 187m (JGD2000=WGS84) Method: VCR, 35.5cm F11 Schmidt Cass, F6.3 Reducer, 25mm eyepiece + 6mm CCTV lens, TGv-M (slow shutter 32Fr) Time signal: GHS, TIVi Observer: Chilong Lin (JOIN:12630) Place: Chunghwa, Taiwan Long.: 120o 33' 10.7" E, 24o 04' 57.3" N, Height: 43m (WGS84, MSL) Method: Video with frame analysis; SCT including Cass and Mark 28.0cm F6.3 Time signal: explained below Result: No occultation (miss) Note: Observation was made from 11h 17m 04s to 11h 30m 32s. Predicted time was 11h 27m 45s. Conditions: Thin cloud < 2; stability: Steady. Asteroid not visible. The data was taken with a Watec-120N real time CCD@7.5fps. The data was recorded onto an NB's HD directly with an AV to USB converter and the UFOCapture software, which may print the time on the frames directly. The NB's time was calibrated 2 hours ahead the observation by synchronizing its built-in clock of Windows with "time.nist.gov". Note: Reported by Mitsuru Soma.