+--------------------------------+ +--------------------------------+ ASTERIODAL OCCULTATION - REPORT FORM +--------------------------------+ +--------------------------------+ EAON & IOTA-ES EUROPEAN ASTEROIDAL OCCULTATION NETWORK INTERNATIONAL OCCULTATION TIMING ASSOCIATION EUROPEAN SECTION +--------------------------------+ +--------------------------------+ 1.DATE: 2019/02/17 STAR: UCAC4-401-034668 ASTEROID: (276) Adelheid 2.OBSERVER: Name: Gerhard Dangl Phone: ++43-(0)2842-53908 Address: AUSTRIA, A-3830, Nonndorf 12 E-mail: gerhard@dangl.at 3.OBSERVING STATION: Nearest city: Waidhofen an der Thaya Latitude: N 48 47 13.6 (WGS84) Longitude: E 15 14 08.2 (WGS84) Altitude: 596m (WGS84) 551m (MSL) Single/Multiple: Single +--------------------------------------------------------------------+ 4.TIMING OF EVENTS: Occultation recorded: NEGATIVE Type of event: "S"tart observation; "I"nterrupt-"s"tart; "D"isappearance; "B"link; "F"lash; "E"nd observation; "I"nterrupt-"e"nd; "R"eappearance; "O"ther (specify) Personal Equation Substracted: No Event Time (UT) P.E. Accuracy + Comments code: HH:MM:SS.ss S.ss S.ss S: 20:26:33 E: 20:28:50 5.TELESCOPE: Type: Newton Focal length: 1200mm Aperture: 254 mm Magnification: video/primary focus/FOV 18.3'x13.7' (768x576, 1.43"x1.43" per pixel) Mount: Equatorial, EQ8 Motor drive: Yes 6.TIMING & RECORDING: Timekeeping: GPS Sensor Garmin GPS18xLVC Sensor/Camera: WAT-910BD System TACOS, CCIR, 1/2" CCD-Sensor Mode of recording: It=40ms (25.0 Img/s), Interlaced Video CCIR, Y800, uncompressed AVI Device of recording: TIS DFG/USB2-lt Videograbber USB2.0 (Y800), Notebook with SSD and OS W7/64P Time insertion: GPS time with VTI KIWI-OSD 7.OBSERVING CONDITIONS: Atmospheric transparency: fair Wind: no Star image stability: fair Minor planet visible: no Temperature: 271 Kelvin (-02 deg Celsius) 8.ADDITIONAL COMMENTS: Target star UCAC4 UCAC4-401-034668, +11.7mag, 31deg Elevation. Only Clear glass filter (Astronomik) for CCD protection was used. Video evaluation accomplished with VirtualDub 1.10.0 and Tangra 3.6.18 Event data details according to the predictions from Occult Watcher Feed IOTA (Steve Preston). Predicted event time was 20:27:24 UTC (+/- 3s) for my observing position. Predicted maximum duration was 11.0 seconds with a 1.9mag drop. Position was 103km from predicted central line in SW direction between 1-sigma and 2-sigma line with a probability of 15.1%. No occultation event detected (It=0.04s). 3-D Position and timing Garmin GPS18x LVC (Update of Almanac data before recording start) Receiving 09 satellites Horizontal Dilution of Precision 0.8 Geoidal separation 44.5m (Altitude 551.3MSL + 44.5 = 595.8 m in WGS84 datum) Gerhard Dangl gerhard@dangl.at www.dangl.at/ +--------------------------------------------------------------------+