ASTEROIDAL OCCULTATION - REPORT FORM +--------------------------------+ +----------------------------------------+ | EAON | | IOTA/ES | | | | INTERNATIONAL OCCULTATION | | EUROPEAN ASTEROIDAL | | TIMING ASSOCIATION | | OCCULTATION NETWORK | | EUROPEAN SECTION | +--------------------------------+ +----------------------------------------+ 1 DATE: 3 October 2021 STAR: UCAC 363-145313 ASTEROID: 2000 SO137 No: 34490 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 - 18:06:42.36 - - 0.01 D - - - - - R - - - - - E - 18:08:12.36 - - 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 : moderate - thin clouds Wind (km/h) : mild Temperature (deg C / humid.) : +16 deg C Star image stability : good Minor planet visible : no Local conditions (degree) : star height: 17, Sun height: -17, Local moon conditions (degree) : Moon height: below horizon 8 ADDITIONAL COMMENTS: Star magnitude : 11.6 Minor planet magnitude : 19.2 Feed : ITALOCCULT Distance (km) : 9 Faintest star on CCD (mag) : 12.6 Exposure time : 0.35 s Readout time : 0.01 s Predicted max. duration (secs) : 0.7 Predicted max. drop (mag) : 7.6 Predicted mid-event (UT) : 18:07:07 Predicted error in time (secs) : 5 Probability : 17.5 %