ASTEROIDAL OCCULTATION - REPORT FORM +------------------------------+ +------------------------------+ | EAON | | IOTA/ES | | | | INTERNATIONAL OCCULTATION | | EUROPEAN ASTEROIDAL | | TIMING ASSOCIATION | | OCCULTATION NETWORK | | EUROPEAN SECTION | +------------------------------+ +------------------------------+ 1 DATE (YYYY/MM/DD): 2020/03/05 STAR: UCAC4 446-056421 ASTEROID: Idelsonia N°: 1403 2 OBSERVER: Name: Robert Schaefer, Andreas Kreutzer EAON Abbr: E-mail: andreas.kreutzer@harpoint-observatory.com Address: Endresstrasse 41, 1230 Vienna 3 OBSERVING STATION: Nearest city: Harpoint, Austria Station: Longitude (DD MM SS.s): E 13 21 06 (WGS84) Latitude (DD MM SS.s): N 47 54 33 (WGS84) Altitude (m): 700 Single station +----------------------------+ 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) Abbreviations P.E.: Personal Equation = reaction time (for visual obs) Acc.: Accuracy (overall accuracy of the given time) Comments Event Time (UT) P.E. Acc. Code HH:MM:SS.ss S.ss S.ss S - 01:28:35 - - : - - - : D - - - : R - - - : - - - : E - 01:32:50 - - : Duration : Mid-event : 5 TELESCOPE: Type: Ritchey-Chrétien Aperture: 500 mm Magnification: f/8 prime focus Mount: fork Motor drive: computer controlled 6 TIMING & RECORDING: Time source: Navilock NL-8022MP GPS with PPS Sensor: ZWO ASI 174MM camera, 0.3s integration time, 2x binning mode Recording: SharpCap 3.2 on Windows 10 Time insertion (specify): computer time synchronized with GPS sensor; computer time delay to GPS clock monitored and logged during observation, then correction applied to exposure times Event insertion (specify): ? 7 OBSERVING CONDITIONS: Atmospheric transparency: good Wind: no Temperature: -4 deg Star image stability: FWHM 4-6" Minor planet visible: no 8 ADDITIONAL COMMENTS: Probability: 29,4% Predicted occultation at 01:30:39 UT Photometric analysis performed with Tangra3