ASTEROIDAL OCCULTATION - REPORT FORM +--------------------------------+ +----------------------------------------+ | EAON | | IOTA/ES | | | | INTERNATIONAL OCCULTATION | | EUROPEAN ASTEROIDAL | | TIMING ASSOCIATION | | OCCULTATION NETWORK | | EUROPEAN SECTION | +--------------------------------+ +----------------------------------------+ 1 DATE: 2 November 2022 STAR: G023600.9+330507 ASTEROID: Priscilla No: 2137 2 OBSERVER : Name : Anna Marciniak Abrr: Address : Astronomical Observatory Institute, A. Mickiewicz University, Sloneczna 36, Poznan, Poland 3 OBSERVING STATION: Nearest city : Poznan Station : Borowiec IAU obs code: 187 Latitude : 52 16 36.8 N Longitude : 17 04 30.8 E Altitude : 123 MSL Datum (WGS84 preferred): WGS84 Single, OR Double or Multiple station (Specify observer's name): single 4 TIMING OF EVENTS: +----------------------------------------------+ | OCCULTATION RECORDED: NEGATIVE | +----------------------------------------------+ Type of event: "S"tart observation "I"nterrupt-start "D"isappearance "B"link "F"lash "E"nd observation "J"nterrupt-end "R"eappearance "O"ther (specify) Event Time (UT) P.E. Acc. Code HH MM SS.ss S.ss S.ss S - 20:47:26.52 - - 0.01 D - - - - - R - - - - - E - 20:49:02.90 - - 0.01 Duration : - Mid-event : - Was your reaction time applied to the above timings? - not applicable. 5 TELESCOPE: Type : Newton f/4.5 Aperture : 400 mm Focal length: 1800 mm FOV : 27'x 30' Mount : paralactic Motor drive: no 6 TIMING & RECORDING: Time source : GPS++ Sensor : Andor Zyla 5.5 camera with sCMOS sensor Mode of recording: Binning 2x2, Image size: Full Shutter (SENS-UP): Electronic Recording : Personal Computer Recording : Own software Time insertion : Start exposure times inserted into FITS headers with own software 7 OBSERVING CONDITIONS: Atmospheric transparency : good Wind (km/h) : 15 Temperature (deg C / humid.) : +13 deg C / humidity 90 % Star image stability : good Minor planet visible : no Local conditions (degree) : star height: 62, Sun height: -47, Local moon conditions (degree) : Moon height: 14 deg, Moon distance: 79 deg, Moon phase: 68% 8 ADDITIONAL COMMENTS: Star magnitude : 14.3 Minor planet magnitude : 15.8 Feed : Central Europe Distance (km) :-11.8 km Faintest star on CCD (mag) : 14.9 Exposure time : 0.6 s Readout time : 0.01 s Predicted max. duration (secs) : 2.74 Predicted max. drop (mag) : 1.8 (0.6 mag with very close, 14.3 mag star) Predicted mid-event (UT) : 20:48:00 Predicted error in time (secs) : 2.6 Probability : 82 %