ASTEROIDAL OCCULTATION - REPORT FORM +------------------------------+ +------------------------------+ | EAON | | IOTA/ES | | | | INTERNATIONAL OCCULTATION | | EUROPEAN ASTEROIDAL | | TIMING ASSOCIATION | | OCCULTATION NETWORK | | EUROPEAN SECTION | +------------------------------+ +------------------------------+ 1 DATE: 2020 November 29 STAR : UCAC4 694-041057 ASTEROID: (795) Fini 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 - 0:11:18.90 on frame n°7 D - 0:12:27,23 +/- 0,66 on frame n°111.5 +0.5/-1.5 R - 0:12:29.86 +/- 0,33 on frame n°115 +/-0.5 E - 0:13:44.76 on frame n°229 Duration : sec 2.63" +/-0,8 Mid-event: 0:12:28.55 UT (Pédicted 0:12:30 +/-4.7 sec UT) 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 :0,657sec/f) = 1.5 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: 4.6 °C Cloud : 20% Star image stability: seeing 1.5 arcsec Transparence : good Minor planet visible: Yes 8 ADDITIONAL COMMENTS: Reduction under TANGRA 3.7.3 Rev 20200512 Predicted Max Duration: 6.2 sec Predicted Magnitude Drop: 0.8 mag No corrections applied / the test results show a variation of +/- 10ms whatever the exposure times between 20 and 700ms