ASTEROIDAL OCCULTATION - REPORT FORM REPORTED to SODIS +------------------------------+ +------------------------------+ | EAON | | IOTA/ES | | | | INTERNATIONAL OCCULTATION | | EUROPEAN ASTEROIDAL | | TIMING ASSOCIATION | | OCCULTATION NETWORK | | EUROPEAN SECTION | +------------------------------+ +------------------------------+ 1 DATE: 17 January 2024 STAR: UCAC4 461_028266 ASTEROID: Ekard N?: 694 2 OBSERVER: Name: Tim HAYMES E-mail: Address: 3 OBSERVING STATION: Nearest city: OXFORD, UK Station : Southside Observatory Y98 Latitude : N 51 55 Longitude: W 01 18 Altitude : 122m Datum (WGS84 preferred): WGS84 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) Comments Event Time (UT) P.E. Acc. Code HH MM SS.ss S.ss S.ss S - 22:49:00 - - : - - - : D - 2250 31.7 +/- 0.2 R - 2250 36.52 +/- 0.1 - - - : E - 22:52:00 - - : Duration : 4.82 Mid-event : 5 TELESCOPE: Type: C11 Aperture: 280mm Magnification: F/6 Mount:EQ8 Pro Motor drive: Yes 6 TIMING & RECORDING: Exposure : 0.2 s Signal/noise: 6 Time source: GPS++ Sensor: QHY174-GPS (5.86x5.86u), Global Shutter Recording: SER (2x2bin), SharpCap v4.0.9478, HP i5 SSD W10. Time insertion (specify): 1 PPS (@ start of frame) Event insertion (specify): Tangra analysis 7 OBSERVING CONDITIONS: Atmospheric transparency: Clear Wind: Bf1 Temperature: -5C Star image stability: Slight flickering Minor planet visible? : Yes 8 ADDITIONAL COMMENTS: 0.5 mag drop Plate scale : 1.5 arcsec/pix (binned) Predicted Time : 17 Jan; 22:50:32 UT +/- 1 sec Combined Mag : 13.3 Predicted drop : 0.6 Max. Duration : 8 sec OW Centre Dist.: 27 km OW Probability : 100.0% Shadow Width : 182 km Alt/Az : 40° @168° Moon Alt : 17° Constellation : Monoceros more CAMERA SETTINGS USB Traffic = 0 Gain : 360 Offset : 100 Gamma : 1 CCD Temporature: -10 C