ASTEROIDAL OCCULTATION - REPORT FORM +--------------------------------+ +----------------------------------------+ | EAON | | IOTA/ES | | | | INTERNATIONAL OCCULTATION | | EUROPEAN ASTEROIDAL | | TIMING ASSOCIATION | | OCCULTATION NETWORK | | EUROPEAN SECTION | +--------------------------------+ +----------------------------------------+ 1 DATE: 13 November 2022 STAR: UCAC4 598-023782 ASTEROID: 1999 UK6 No: 91849 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: 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 - 21:52:56.36 - - 0.01 E - 21:54:06.23 - - 0.01 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 : strongly variable due to high clouds passing, but target star visible all the time Wind (km/h) : 10 Temperature (deg C / humid.) : 6 deg C / humidity 90 % Star image stability : good Minor planet visible : no Local conditions (degree) : star height: 47, Sun height: -55, Local moon conditions (degree) : Moon height: 28 deg, Moon distance: 25 deg 8 ADDITIONAL COMMENTS: Star magnitude : 13.1 Minor planet magnitude : 18.1 Feed : CentralEurope Distance (km) : 2.9 Faintest star on CCD (mag) : 14.7 Exposure time : 0.5 s Readout time : 0.01 s Predicted max. duration (secs) : 1.65 Predicted max. drop (mag) : 5 Predicted mid-event (UT) : 21:53:17 Predicted error in time (secs) : 7 Probability : 12.5 %