+--------------------------------+ +--------------------------------+ ASTERIODAL OCCULTATION - REPORT FORM +--------------------------------+ +--------------------------------+ EAON & IOTA-ES EUROPEAN ASTEROIDAL OCCULTATION NETWORK INTERNATIONAL OCCULTATION TIMING ASSOCIATION EUROPEAN SECTION +--------------------------------+ +--------------------------------+ 1.DATE: 2013/08/11 STAR: 3UC140-422859 ASTEROID: (1073) Gellivara 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 13.4 (WGS84) Longitude: E 15 14 08.4 (WGS84) Altitude: 601m (WGS84) 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: 20:12:35 E: 20:14:31 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 Motor drive: Yes 6.TIMING & RECORDING: Timekeeping: GPS 1PPS, GlobalSat EM-406A GPS Board + IOTA-VTI (Demo3) V1.1.43 Sensor/Camera: WAT-120N, CCIR, 1/2" Sony CCD-Sensor ICX419ALL Mode of recording: It=160ms (6.25 Img/s), Video CCIR, Y800, uncompressed AVI Device of recording: TIS DFG/USB2-lt Videograbber USB2.0 (Y800), Notebook Harddisk Time insertion: IOTA-VTI 7.OBSERVING CONDITIONS: Atmospheric transparency: fair Wind: no Star image stability: fair Minor planet visible: no Temperature: 8.ADDITIONAL COMMENTS: Target star 3UC140-422859, +11.5mag, 14deg Elevation. Only Clear glass filter (Astronomik) for CCD protection was used. Video evaluation accomplished with VirtualDub 1.10.0, Tangra v1.4.0.497 Predicted event time was 20:13:26 UTC (+/- 10s) for my observing position. Predicted maximum duration was 3.0 seconds with a 3.6mag drop. Position was 78km from predicted central line in N direction between path edge and 1-sigma line with a probability of 11.4%. No occultation event detected (It=160ms). 3-D Position and timing GlobalSat EM-406A GPS Board Receiving 09 satellites Horizontal Dilution of Precision 1.0 Geoidal separation 44.6m (Altitude 556.7MSL + 44.6 = 601.3 m in WGS84 datum) Gerhard Dangl gerhard@dangl.at www.dangl.at/ +--------------------------------------------------------------------+