ASTEROIDAL OCCULTATION - REPORT FORM +--------------------------------+ +----------------------------------------+ | EAON | | IOTA/ES | | | | INTERNATIONAL OCCULTATION | | EUROPEAN ASTEROIDAL | | TIMING ASSOCIATION | | OCCULTATION NETWORK | | EUROPEAN SECTION | +--------------------------------+ +----------------------------------------+ 1 DATE: 27 July 2022 STAR: UCAC4 608-116149 ASTEROID: Periboea No: 12929 2 OBSERVER : Name : Anna Marciniak Address : Astronomical Observatory Institute, A. Mickiewicz University, Sloneczna 36, Poznan, Poland 3 OBSERVING STATION: Nearest city : Poznan Station : Chalin IAU obs code: - Latitude : 52 36 14.0 N Longitude : 16 02 33.4 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: POSITIVE | +----------------------------------------------+ 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 - 21:41:51.98 - - 0.01 D - 21:44:47.71 - - 1.00 R - 21:44:51.76 - - 1.00 E - 21:47:53.56 - - 0.01 Duration : 4.05 +/- 1.41 Mid-event : 21:44:49.73 +/- 1.00 Was your reaction time applied to the above timings? - not applicable. 5 TELESCOPE: Type : Cassegrain f/5.3 Aperture : 350 mm Focal length: 1855 mm FOV : 19'x 21' Mount : altazimuth Motor drive: yes 6 TIMING & RECORDING: Time source : GPS++ Sensor : Andor Zyla 5.5 camera with sCMOS sensor Mode of recording: Binning 4x4, Image size: Full Shutter (SENS-UP): Electronic, Global 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) : 8 Temperature (deg C / humid.) : +15 deg C / humidity 85% Star image stability : moderate Minor planet visible : no Local conditions (degree) : star height: 63, Sun height: -17 Local moon conditions (degree) : Moon height: under horizon 8 ADDITIONAL COMMENTS: Star magnitude : 16.3 Minor planet magnitude : 17.4 Feed : LuckyStar Distance (km) : 13.6 Faintest star on CCD (mag) : 16.8 Exposure time : 2.00 s Readout time : 0.02 s Predicted max. duration (secs) : 4.1 Predicted max. drop (mag) : 1.3 Predicted mid-event (UT) : 21:44:50 Predicted error in time (secs) : 2.5 Probability : 80%