ASTEROIDAL OCCULTATION - REPORT FORM +------------------------------+ +------------------------------+ | EAON | | IOTA/ES | | | | INTERNATIONAL OCCULTATION | | EUROPEAN ASTEROIDAL | | TIMING ASSOCIATION | | OCCULTATION NETWORK | | EUROPEAN SECTION | +------------------------------+ +------------------------------+ 1 DATE: 21 November 2020 STAR: UCAC4 515_003101 ASTEROID: Ottilia N?: 401 2 OBSERVER: Name: Carlo Gualdoni Abbr: CG E-mail: gualdoni.carlo@gmail.com Address: 22100 - Como - Italy 3 OBSERVING STATION: Nearest city: IT-22100 Como Station: Nirvana Observatory Latitude: 45° 48' 18" N Longitude: 09° 06' 01" E Altitude: 255 m Datum (WGS84 preferred): WGS84 Single, OR Double or Multiple station (Specify observer's name): Single +----------------------------------+ 4 TIMING OF EVENTS: | | | OCCULTATION RECORDED: POSITIVE | | | +----------------------------------+ Type of event Start observation Interrupt-start Disappearance Blink Flash End observation Jnterrupt-end Reappearance Other (specify) Comments Event Time (UT) P.E. Acc. Code HH MM SS.ss S.ss S.ss S - 22 38 14.00 - - : - - - : D - 22 43 14.13 - ±0.06 - : Gradual 10 frames R - 22 43 22.31 - ±0.04 - : Gradual 12 frames - - - : E - 22 48 14.00 - - : Duration : 8.18 Mid-event : 22 43 18.22 Was your reaction time applied to the above timings? n.a. 5 TELESCOPE: Type: Schmidt-Cassegrain Aperture: 25cm Magnification: - Mount: equatorial Motor drive: Yes 6 TIMING & RECORDING: Time source: GPS++ Sensor: Watec 910-HX camera (Exposure set at 4X) Recording: IOTA Video Capture Version 2.2 Time insertion (specify): IOTA-VTI Time inserter Event insertion (specify): - 7 OBSERVING CONDITIONS: Atmospheric transparency: very good Wind: no Temperature: - Star image stability: very good Minor planet visible: at times 8 ADDITIONAL COMMENTS: Using TANGRA 3.7 and AOTA v4.9.5.3