ASTEROIDAL OCCULTATION - REPORT FORM REPORTED to SODIS +------------------------------+ +------------------------------+ | EAON | | IOTA/ES | | | | INTERNATIONAL OCCULTATION | | EUROPEAN ASTEROIDAL | | TIMING ASSOCIATION | | OCCULTATION NETWORK | | EUROPEAN SECTION | +------------------------------+ +------------------------------+ 1 DATE: 9 January 2024 STAR: UCAC4 520_046980 ASTEROID: Tumilty N?: 3614 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 - 2016:00 - - : - - - : D - 20h18m 23.99 +/- 0.1 R - 20h18m 25.89 +/- 0.1 - - - : E - 2020:00 - - : Duration : 1.9s Mid-event : 5 TELESCOPE: Type: C11 Aperture: 280mm Magnification: F/6 Mount:EQ8 Pro Motor drive: Yes 6 TIMING & RECORDING: Exposure : 0.2 Signal/noise: 6.5 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: Bf 3 Temperature: -1C Star image stability: StrongFlickering Minor planet visible? : No 8 ADDITIONAL COMMENTS: Plate scale : 1.5 arcsec/pix (binned) Predicted Time : 09 Jan; 20:18:25 UT +/- 2 sec Combined Mag : 13.0 Predicted drop : 2.3 Max. Duration : 3 sec OW Centre Dist.: 27 km OW Probability : 42.2% Shadow Width : 80 km Alt/Az : 21° @93° Moon Alt : -55° Constellation : Cancer more CAMERA SETTINGS USB Traffic = 0 Gain : 360 Offset : 100 Gamma : 1 CCD Temporature: -10 C