ASTEROIDAL OCCULTATION - REPORT FORM +------------------------------+ +------------------------------+ | EAON | | IOTA/ES | | | | INTERNATIONAL OCCULTATION | | EUROPEAN ASTEROIDAL | | TIMING ASSOCIATION | | OCCULTATION NETWORK | | EUROPEAN SECTION | +------------------------------+ +------------------------------+ 1 DATE (2022/09/17): STAR: UCAC4 583-040059 ASTEROID: Mathesis N°: 454 2 OBSERVER: Name: Daniel Antuszewicz EAON Abbr: E-mail: danikantuszewicz@gmail.com Address: 3 OBSERVING STATION: Nearest city: Legionowo (Poland) Station: Legionowo Longitude (20 54 08.7): Latitude (52 22 57.4): Altitude (m):81 Datum (WGS84 preferred): Single, OR Double or Multiple station (Specify observer's name): +----------------------------+ 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) Abbreviations P.E.: Personal Equation = reaction time (for visual obs) Unc.: Uncertainty (global uncertainty on the given time) Comments: Event Time (UT) P.E. Unc. Code HH:MM:SS.ss S.ss S.ss S - 2:31:26.96 - - : - - - : D - 2:32:21.40 - - : ± 0.15 R - 2:32:22.60 - - : ± 0.15 - - - : E - 2:33:26.65 - - : Duration : 1.20 sec (± 0.15) Mid-event : 2:32:22.00 Was your reaction time applied to the above timings? 5 TELESCOPE: Type: Dobsonian Aperture: 8.0 inch Magnification: Mount: azimuthal Motor drive: no motor drive (manual guidance) 6 TIMING & RECORDING: Time source: NTP Meinberg (Win10) Sensor: CMOS MT9M034 (ZWO ASI 120mm) Recording: Yes SharpCap, direct to PC Time insertion (specify): NTP Time Server Monitor 7 OBSERVING CONDITIONS: Atmospheric transparency: good Wind: low Temperature: 8°c Star image stability: Slight flickering Minor planet visible: no 8 ADDITIONAL COMMENTS: Exposure: 300ms, gain 100, Format: .ser Acquisition software: SharpCap Light star 13.6 mag ; Light asteroid 14.9 mag Photometry software used: Tangra3