ASTEROIDAL OCCULTATION - REPORT FORM +------------------------------+ +------------------------------+ | EAON | | IOTA/ES | | | | INTERNATIONAL OCCULTATION | | EUROPEAN ASTEROIDAL | | TIMING ASSOCIATION | | OCCULTATION NETWORK | | EUROPEAN SECTION | +------------------------------+ +------------------------------+ 1 DATE (YYYY/MM/DD): 2023/04/05 STAR: UCAC4 510-051485 ASTEROID: Persephone N°: 399 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: Cadca 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: NEGATIVE | | | +----------------------------+ 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 - 20:38:26.000 0.330s : - - - : D - - - : R - - - : - - - : E - 20:41:41.000 0.330s : 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=0.330ms (100 Img/s), uncompressed SER Recording device: PC W10 32b Recording software: SharpCap 4.0.9521.0 7 OBSERVING CONDITIONS: Atmospheric transparency: GOOD Wind: NO Temperature: -3C Star image stability: AVERAGE Minor planet visible: NO 8 ADDITIONAL COMMENTS: Event data details according to the predictions from IBEROC. Predicted event time was 20:40:24 UTC (+/- 8s) for my observing position. Predicted maximum duration was 6.7 seconds with a 0.3 mag drop. Position was 27km from predicted central line in NW direction inside the shadow with a probability of 34.8%. Analyzed by PyMovie 3.6.6 and PYOTE 5.0.2. Synchronization of Windows system time was by NTP Time Server Monitor(Meinberg), checked by TimeMemo software.