ASTEROIDAL OCCULTATION - REPORT FORM +----------------------------------------+ +----------------------------------------------+ | EAON | | IOTA/ES | | | | INTERNATIONAL OCCULTATION | | EUROPEAN ASTEROIDAL | | TIMING ASSOCIATION | | OCCULTATION NETWORK | | EUROPEAN SECTION | +----------------------------------------+ +----------------------------------------------+ 1 DATE: 2021 April 2 STAR : UCAC4 605-026972 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 - 20: 59: 12.98 on frame n°8 D - 21: 00: 17.63 +/- 0,16 " n°210 R - 21: 00: 19.07 +/- 0,16 " n°214.5 E - 21: 51: 39.63 on frame n°438 Duration : 1,44 sec +/- 0.28 Mid-event: 21: 00: 18.35 UT (Pédicted 21: 00: 19 +/- 0.9 sec) Was your reaction time applied to the above timings? NO 5 TELESCOPE: Type: Ritchey Chrétien RC10 - Aperture: 254 mm - Magnification: Focus 1340mm - F/D=5.27 Mount: Equatorial - Motor drive: YES 6 TIMING & RECORDING: Time source: GPS 1 PPS-NMEA Sensor: CAMERA ASI178MM - Binning x2 - Exposition :0,32sec/f => 3,13 fps Gamma na - Gain 469/510 Recording: Genika 10bits - 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: Cloudy SKY Wind: 0 ms Temperature: 12 °C Cloud : 70% Star image stability: seeing 1.1 arcsec Minor planet visible: No 8 ADDITIONAL COMMENTS: Reduction under TANGRA 3.7.3 Rev 20200512 Predicted Max Duration: 3.4 sec Predicted Magnitude Drop: 5.1 mag No corrections applied / the test results show a variation of +/- 10ms whatever the exposure times between 20 and 700ms