ASTEROIDAL OCCULTATION - REPORT FORM +------------------------------+ +------------------------------+ | EAON | | IOTA/ES | | | | INTERNATIONAL OCCULTATION | | EUROPEAN ASTEROIDAL | | TIMING ASSOCIATION | | OCCULTATION NETWORK | | EUROPEAN SECTION | +------------------------------+ +------------------------------+ 1 DATE (YYYY/MM/DD): 2013/04/14 STAR: 2UCAC39647755 ASTEROID: Aplhonsina N°: 925 2 OBSERVER: Name: Peter DELINCAK EAON Abbr: PDL 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 - 20:00:42.000 0.25s : - - - : D - : R - : - - - : E - 20:04:23.796 0.25s : Duration : Mid-event : 5 TELESCOPE: Type: Mirror optics Aperture: 355mm Magnification: prime focus (f/4.2) Mount: EQUATORIAL Motor drive: YES 6 TIMING & RECORDING: Time source: radio signal DCF 77 Sensor: QHY5 Recording: uncompressed BMP, WXP 32b PC HDD Time insertion (specify): video inserter => RAD++ 7 OBSERVING CONDITIONS: Atmospheric transparency: GOOD Wind: NO Temperature: 7C Star image stability: GOOD Minor planet visible: NO 8 ADDITIONAL COMMENTS: Event data details according to the predictions from IOTA. Predicted event time was 20:02:42 UTC (+/- 4s) for my observing position. Predicted maximum duration was 3.2 seconds with a 1.3mag drop. Position was 296km from predicted central line in SW direction inside the 2-sigma limit with a probability of 3.2%.