ASTEROIDAL OCCULTATION - REPORT FORM +--------------------------------+ +----------------------------------------+ | EAON | | IOTA/ES | | | | INTERNATIONAL OCCULTATION | | EUROPEAN ASTEROIDAL | | TIMING ASSOCIATION | | OCCULTATION NETWORK | | EUROPEAN SECTION | +--------------------------------+ +----------------------------------------+ 1 DATE: 28 April 2022 STAR: UCAC4 462-057484 ASTEROID: Mickiewicz No: 5889 2 OBSERVER : Name : Julia Perla 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: 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 - 00:11:02.12 - - 0.01 D - 00:12:21.64 - - 0.35 R - 00:12:23.77 - - 0.35 E - 00:12:35.84 - - 0.01 Duration : 2.13s +/- 0.49s Mid-event : 00:12:22.70 UT +/- 0.35s 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) : 9 Temperature (deg C / humid.) : +6 deg C / humidity 85 % Star image stability : good Minor planet visible : no Local conditions (degree) : star height: 39, Sun height: -22, Local moon conditions (degree) : Moon height: below horizon 8 ADDITIONAL COMMENTS: Star magnitude : 12.7 Minor planet magnitude : 16.4 Feed : CentralEurope Distance (km) : 24.1 km Faintest star on CCD (mag) : 13.6 Exposure time : 0.7 s Readout time : 0.01 s Predicted max. duration (secs) : 2.5 Predicted max. drop (mag) : 3.7 Predicted mid-event (UT) : 00:12:21 Predicted error in time (secs) : 4.3 Probability : 20.7 %