ASTEROIDAL OCCULTATION - REPORT FORM +------------------------------+ +------------------------------+ | EAON | | IOTA/ES | | | | INTERNATIONAL OCCULTATION | | EUROPEAN ASTEROIDAL | | TIMING ASSOCIATION | | OCCULTATION NETWORK | | EUROPEAN SECTION | +------------------------------+ +------------------------------+ 1 DATE: 2019 May 15 STAR: UCAC4 565-031199 ASTEROID: 38 Leda 2 OBSERVER: Name: Gérard VAUDESCAL Abbr:VDC E-mail: gg.vaudescal@free.fr Address: 65380 Azereix - France Name: Dinastro Team Abbr: E-mail: Address: ASS. DINASTRO 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: NEGATIVE | | | +----------------------------------+ Type of event Start observation Interrupt-start Disappearance Blink Flash End observation Jnterrupt-end Reappearance Other (specify) Comments Event Time (UT) Acc. Code HH MM SS.ss S.ss S - 21:05:19.04 on frame n°8 (correction Gerhard Dangl) D - +/- R - +/- E - 21:06:37.60 on frame n°499 " Duration : Mid-event : 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 0.9 - Gain 38dB Recording: OccuRec V 3.2.0 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: veiled SKY Wind: 0 ms Temperature: 10 °C Star image stability: medium Minor planet visible: Yes 8 ADDITIONAL COMMENTS: Reduction under TANGRA 3.6.18 the result is uncertain because of the atmospheric turbulence and the small magnitude drop that does not allow a sufficiently reliable analysis.