ASTEROIDAL OCCULTATION - REPORT FORM +------------------------------+ +------------------------------+ | EAON | | IOTA/ES | | | | INTERNATIONAL OCCULTATION | | EUROPEAN ASTEROIDAL | | TIMING ASSOCIATION | | OCCULTATION NETWORK | | EUROPEAN SECTION | +------------------------------+ +------------------------------+ 1 DATE (YYYY/MM/DD): 2023/02/22 STAR: UCAC4 563-047286 ASTEROID: 2008 YK169 N°: 346713 2 OBSERVER: Name: Peter DELINCAK E-mail: pdlink@astronomy.sk Address: SLOVAKIA, Hviezdoslavova 1971, 022 01 Cadca Phone: +421 915 710 121 Web: www.astronomy.sk 3 OBSERVING STATION: Nearest city: Zakopcie, U Golisov Station: PDlink Observatory Longitude (DD MM SS.s): E 18 42 09.47 (WGS84) Latitude (DD MM SS.s): N 49 24 15.20 (WGS84) Altitude (m): 680.231m (WGS84) Single|Multiple station: Single +----------------------------+ 4 TIMING OF EVENTS: | | | EVENT REPORTED: POSITIVE | | | +----------------------------+ Event code S: observation Start I: Interruption start D: Disappearance J: Interruption end R: Reappearance B: Blink F: Flash E: observation End O: Other (specify) Personal Equation Substracted: No Comments Event Time (UT) P.E. Acc. Code HH:MM:SS.ss S.ss S.ss S - 23:10:04.000 0.050s : - - - : D - - - : R - - - : - - - : E - 23:14:04.000 0.050s : Duration : Mid-event : 5 TELESCOPE: Type: Mirror optics Aperture: 400mm Magnification: prime focus (f/5) Mount: EQUATORIAL Motor drive: YES 6 TIMING & RECORDING: Time source: NTP Sensor: QHY 5 III 290M Recording: It=0.050ms (20.0 Img/s), uncompressed SER Recording device: PC W7 32b Recording software: SharpCap 4.0.8765.0 7 OBSERVING CONDITIONS: Atmospheric transparency: GOOD Wind: NO Temperature: -2C Star image stability: AVERAGE Minor planet visible: NO 8 ADDITIONAL COMMENTS: Event data details according to the predictions from UKOCL. Predicted event time was 23:12:04 UTC (+/- 5s) for my observing position. Predicted maximum duration was 0.7 seconds with a 8.5 mag drop. Position was 28km from predicted central line in NE direction inside the 1-sigma limit with a probability of 5.8%. Analyzed by PyMovie 3.7.3 and PYOTE 5.1.6. Synchronization of Windows system time was by NTP Time Server Monitor(Meinberg), checked by TimeMemo software