ASTEROIDAL OCCULTATION - REPORT FORM +--------------------------------+ +----------------------------------------+ | EAON | | IOTA/ES | | | | INTERNATIONAL OCCULTATION | | EUROPEAN ASTEROIDAL | | TIMING ASSOCIATION | | OCCULTATION NETWORK | | EUROPEAN SECTION | +--------------------------------+ +----------------------------------------+ 1 DATE: 1 March 2022 STAR: UCAC4 558-043725 ASTEROID: Adorea No: 268 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: UNCERTAIN | +----------------------------------------------+ 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 - 02:07:11.2 - - 0.1 D - 02:07:53.8 - - 8.0 R - 02:08:28.9 - - 8.0 E - 02:09:14.2 - - 0.1 Duration : 35.1 +/- 9.9 sec Mid-event : 02:08:11.3 +/- 8.0 Was your reaction time applied to the above timings? - not applicable. 5 TELESCOPE: Type : Cassegrain f/0.19 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) : mild Temperature (deg C / humid.) : -2 deg C / humidity 70 % Star image stability : good Minor planet visible : yes Local conditions (degree) : star height: 18, Sun height: -32, Local moon conditions (degree) : Moon height: below horizon 8 ADDITIONAL COMMENTS: Star magnitude : 15.7 Minor planet magnitude : 13.1 Feed : ITALOccult Distance (km) : 16.2 km Faintest star on CCD (mag) : 16.0 Exposure time : 2.5 s Readout time : 0.01 s Predicted max. duration (secs) : 32.7 Predicted max. drop (mag) : 0.1 Predicted mid-event (UT) : 02:08:10 Predicted error in time (secs) : 6 Probability : 100 % Very shallow event and too few datapoints outside occultation for reliable noise analysis. Data analysed by Eric Frappa.