ASTEROIDAL OCCULTATION - REPORT FORM +--------------------------------+ +----------------------------------------+ | EAON | | IOTA/ES | | | | INTERNATIONAL OCCULTATION | | EUROPEAN ASTEROIDAL | | TIMING ASSOCIATION | | OCCULTATION NETWORK | | EUROPEAN SECTION | +--------------------------------+ +----------------------------------------+ 1 DATE: 22 December 2021 STAR: UCAC4 616-038659 ASTEROID: Amundsenia No: 1065 2 OBSERVER: Name : Maciej Borkowski Address : 16-001 Ksiezyno, Poland 3 OBSERVING STATION: Nearest city : Bialystok Station : Ksiezyno Acc. Latitude : 53 4 33.7 N - 0.1" Longitude : 23 6 07.8 E - 0.1" Altitude : 145 - 1m 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 - 18:53:05.20 D - 18:55:04.52 +/- 0.08 R - 00:55:05.11 +/- 0.12 E - 18:57:06.31 Duration: 0.59 +/- 0.14 sec All times above have 0.02 sec correction added due to TIM-10 VTI. Predicted max. duration (secs) : 0.7 Predicted max. drop (mag) : 2.7 Predicted mid-event (UT) : 18:55:03 Predicted error in time (secs) : 1 Was your reaction time applied to the above timings? - not relevant 5 TELESCOPE: Type : Newton f/5 Aperture : 300 mm Focal length: 1500 mm FOV : 14.7'x 10.0' Mount : azimuthal Motor drive: yes 6 TIMING & RECORDING: Time source : AME Video time inserter TIM - 10 (GPS time) Sensor : WATEC 910 HX camera Mode of recording: 8 bit AVI, AGC: high Shutter : 0.16 s Recording : Laptop DELL Latitude 7480 (Windows 10 Intel Core i7 2.80GHz RAM 16 GB) Recording : VirtualDub64 2.0.0.0 7 OBSERVING CONDITIONS: Atmospheric transparency : good Wind (m/s) : 1 Temperature (deg C) : -12 Star image stability : decent Minor planet visible : no Local conditions (degree) : star altitude: 39 E, sun altitude: -41 Local moon conditions (degree) : 13 E 8 ADDITIONAL COMMENTS: Observed star : UCAC4 616-038659 Star magnitude (mag) : 13.4 Minor planet magnitude (mag) : 16.0 Feed : ITALOccult, last updated November 11, 2021 Rank : 90 Distance (km) : in the 1-sigma zone, 1 km outside the shadow path Travel distance (km) : 6 km SE Shadow width (km) : 10 Predicted probability OccultWatcher (%) : 38.2 Predicted combined magnitude (mag) : 13.3 Faintest star on AVI (mag) : 13.9