ASTEROIDAL OCCULTATION - REPORT FORM +------------------------------+ +------------------------------+ | EAON | | IOTA/ES | | | | INTERNATIONAL OCCULTATION | | EUROPEAN ASTEROIDAL | | TIMING ASSOCIATION | | OCCULTATION NETWORK | | EUROPEAN SECTION | +------------------------------+ +------------------------------+ 1 DATE: 2020 November 22 STAR : UCAC4 643-037245 ASTEROID: (1118) Hanskya 2 OBSERVER: Name: Gérard VAUDESCAL Abbr:VDC E-mail: gg.vaudescal@free.fr Address: 65380 Azereix - France 3 OBSERVING STATION: Nearest city: AZEREIX(65380) Station: Observatoire d'Azereix Latitude: N 43 12 36.0 (WGS84) Longitude: W 00 00 46.5 (WGS84) Altitude: 340 m Single, OR Double or Multiple station (Specify observer's name): Single +----------------------------------+ 4 TIMING OF EVENTS: | | | OCCULTATION RECORDED: POSITIVE | | | +----------------------------------+ Type of event Start observation Interrupt-start Disappearance Blink Flash End observation Jnterrupt-end Reappearance Other (specify) Event Time (UT) Acc. Comments Code HH MM SS.ss S.ss S - 0:15:31.66 on frame n°7 D - 0:16:41.22 +/- 0,13 R - 0:16:49.28 +/- 0,13 E - 0:18:00.10 on frame n°596 Duration : 8.06" +/-0,18 Mid-event: 0:16:45.25 UT (Pédicted 0:16:45 +/-6.9 sec) Was your reaction time applied to the above timings? NO 5 TELESCOPE: Type: Ritchey Chrétien RC10 - Aperture: 254 mm - Magnification: Focus 2000 mm x0.67 (reducer) F/D=5.27 Mount: Equatorial - Motor drive: YES 6 TIMING & RECORDING: Time source: GPS 1 PPS-NMEA Sensor: CAMERA ASI178MM - Binning x2 - Exposition :0,252sec/f) = 3.97 fps Gamma na - Gain 510/510 Recording: Genika 8bits - format SER - Time insertion: module GPS_DCD_Time (Genika)-Synchronisation times UTC/frames with module SER Toolbox (Génika) Event insertion (specify): PC-Windows10 7 OBSERVING CONDITIONS: Clear SKY Wind: 0 ms Temperature: 2 °C Cloud : 0% Star image stability: seeing 1.4 arcsec Minor planet visible: Yes 8 ADDITIONAL COMMENTS: Reduction under TANGRA 3.7.3 Rev 20200512 Predicted Max Duration: 8.1 sec Predicted Magnitude Drop: 2.2 mag No corrections applied / the test results show a variation of +/- 10ms whatever the exposure times between 20 and 700ms