+--------------------------------+ +--------------------------------+ ASTERIODAL OCCULTATION - REPORT FORM +--------------------------------+ +--------------------------------+ EAON & IOTA-ES EUROPEAN ASTEROIDAL OCCULTATION NETWORK INTERNATIONAL OCCULTATION TIMING ASSOCIATION EUROPEAN SECTION +--------------------------------+ +--------------------------------+ 1.DATE: 2013/11/04 STAR: TYC 1752-00013-1 ASTEROID: (174) Phaedra 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 13.3 (WGS84) Longitude: E 15 14 08.2 (WGS84) Altitude: 596m (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: 00:00:31 E: 00:04:18 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 Sensor Garmin GPS18xLVC 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: KIWI-OSD VTI 7.OBSERVING CONDITIONS: Atmospheric transparency: fair Wind: no Star image stability: fair Minor planet visible: yes, with longer integration time Temperature: 275 Kelvin (+02 deg Celsius) 8.ADDITIONAL COMMENTS: Target star TYC 1752-00013-1, +11.8mag, 56deg Elevation. Only Clear glass filter (Astronomik) for CCD protection was used. Video evaluation accomplished with VirtualDub 1.10.0, Tangra v1.4.0.497 Event data details according to the predictions from Steve Preston. Predicted event time was 00:01:54 UTC (+/- 4s) for my observing position. Predicted maximum duration was 4.7 seconds with a 1.4mag drop. Position was -19km from predicted central line in S direction between central line and path edge with a probability of 48.2%. No occultation event detected (It=160ms). 3-D Position and timing Garmin GPS18x LVC Receiving 09 satellites Horizontal Dilution of Precision 0.9 Geoidal separation 44.6m (Altitude 551.8MSL + 44.5 = 596.3 m in WGS84 datum) Gerhard Dangl gerhard@dangl.at www.dangl.at/ +--------------------------------------------------------------------+