ASTEROIDAL OCCULTATION - REPORT FORM +------------------------------+ +------------------------------+ | EAON | | IOTA/ES | | | | INTERNATIONAL OCCULTATION | | EUROPEAN ASTEROIDAL | | TIMING ASSOCIATION | | OCCULTATION NETWORK | | EUROPEAN SECTION | +------------------------------+ +------------------------------+ 1 DATE: 2019 December 29 STAR: UCAC4 588-033991 ASTEROID: 29943 1999 JZ78 2 OBSERVER: Name: Gérard VAUDESCAL Abbr:VDC E-mail: gg.vaudescal@free.fr Address: 65380 Azereix - France Name: Abbr: E-mail: Address: 3 OBSERVING STATION: Nearest city: VISKER(65200) Station: Observatoire de Biscarmiau Latitude: N 43 08 40.4 (WGS84) Longitude: E 00 03 31.8 (WGS84) Altitude: 488 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 - 02:40:05.201 on frame n°11 (correction Gerhard Dangl) D - 02:40:58.82 +/- 0.12 n°345,5 " R - 02:40:59.94 +/- 0.12 n°353 E - 02:42:02.700 on frame n°745 " Duration : 1.12 sec Mid-event: 02:40:59.38 UT (Pédicted 02:41:02 +/-3sec) Was your reaction time applied to the above timings? NO 5 TELESCOPE: Type: NEWTON Aperture: 305 mm Magnification: Focus 1188 mm Mount: Equatorial Motor drive: YES 6 TIMING & RECORDING: Time source: GPS 1 PPS Sensor: CAMERA WATEC 910HX/RC CCIR - integrated Shutter Low x8 (0,16sec/f) - Gamma 1 - Gain 41dB Recording: OccuRec V 3.3.1 Beta and Grabber Lindy USB2 - mode AAV - Intégration rate x4 Time insertion (specify):IOTA VTI V3 (CCIR) Event insertion (specify): PC-Windows7 7 OBSERVING CONDITIONS: Clear SKY Wind: 0 ms Temperature: 7 °C Star image stability: good - seeing 0,9 arcsec Minor planet visible: Yes 8 ADDITIONAL COMMENTS: Reduction under TANGRA 3.6.19 and AOTA v4.9.1.0 Several OCR Times (video start: 93 to 116) have been corrected. The frames were checked to ensure the application of the corrections as well as the consistency between the AOTA result, the dating integrated into the image and the light flux following to the Tangra reduction.