2235 ASTEROIDAL OCCULTATION - REPORT FORM REPORTED to SODIS +------------------------------+ +------------------------------+ | EAON | | IOTA/ES | | | | INTERNATIONAL OCCULTATION | | EUROPEAN ASTEROIDAL | | TIMING ASSOCIATION | | OCCULTATION NETWORK | | EUROPEAN SECTION | +------------------------------+ +------------------------------+ 1 DATE: 2 February 2024 STAR: UCAC4 488_016628 ASTEROID: 2000 LY7 N?: 26648 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 - 2235:00 - - : - - - : D - 22 36 29.40 ± 0.08 R - 22 36 30.70 ± 0.08 - - - : E - 2238:00 - - : Duration : 1.30 Mid-event : 2236: 30.05s 5 TELESCOPE: Type: C11 Aperture: 280mm Magnification: F/6 Mount:EQ8 Pro Motor drive: Yes 6 TIMING & RECORDING: Exposure : 0.1s Signal/noise: 7 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+AOTA analysis 7 OBSERVING CONDITIONS: Atmospheric transparency: clear (thin cloud) Wind: 0 Temperature: +5 Star image stability: good Minor planet visible? : No 8 ADDITIONAL COMMENTS: Thin cloud again (high P region 30.1") but clear enough for a good observation. Star not far from betelgeuse. Plate scale : 1.4 arcsec/pix (binned) Predicted Time : 02 Feb; 22:36:31 UT +/- 1 sec Combined Mag : 12.4 Predicted drop : 6.4 Max. Duration : 2 sec OW Centre Dist.: 1 km OW Probability : 99.0% Shadow Width : 14 km Alt/Az : 43° @207° Moon Alt : -27 ° Constellation : Orion more CAMERA SETTINGS USB Traffic = 0 Gain : 350 Offset : 100 Gamma : 1 CCD Temporature: -10 C