ASTEROIDAL OCCULTATION - REPORT FORM +--------------------------------+ +----------------------------------------+ | EAON | | IOTA/ES | | | | INTERNATIONAL OCCULTATION | | EUROPEAN ASTEROIDAL | | TIMING ASSOCIATION | | OCCULTATION NETWORK | | EUROPEAN SECTION | +--------------------------------+ +----------------------------------------+ 1 DATE: 10 August 2022 STAR: UCAC4 365-133607 ASTEROID: Justitia No: 269 2 OBSERVER : Name : Anna Marciniak Abrr: 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: 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 - 21:43:49.97 - - 0.01 D - - - R - - - E - 21:47:52.78 - - 0.01 Duration : - Mid-event : - 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.) : 22 deg C / humidity 60% Star image stability : good Minor planet visible : yes Local conditions (degree) : star height: 18, Sun height: -20 Local moon conditions (degree) : Moon height: 12, Moon elongation: 27, Moon phase: 98% 8 ADDITIONAL COMMENTS: Star magnitude : 13.3 Minor planet magnitude : 12.8 Feed : Central Europe Distance (km) :-59.5 km Faintest star on CCD (mag) : 15.3 Exposure time : 1.2 s Readout time : 0.035 s Predicted max. duration (secs) : 16.87 Predicted max. drop (mag) : 0.5 Predicted mid-event (UT) : 21:45:50 Predicted error in time (secs) : 12.4 Probability : 17%