+--------------------------------+ +--------------------------------+ ASTERIODAL OCCULTATION - REPORT FORM +--------------------------------+ +--------------------------------+ EAON & IOTA-ES EUROPEAN ASTEROIDAL OCCULTATION NETWORK INTERNATIONAL OCCULTATION TIMING ASSOCIATION EUROPEAN SECTION +--------------------------------+ +--------------------------------+ 1.DATE: 2012/09/07 STAR: 3UC280-046704 ASTEROID: (16708) 1995 SP1 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/Thaya Latitude: N 48 47 13.5 (WGS84) Longitude: E 15 14 08.2 (WGS84) Altitude: 591m (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: 23:54:33 E: 23:57:03 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-902H2 Ultimate, CCIR, 1/2" Sony CCD-Sensor ICX429ALL Mode of recording: It=20ms (50 Img/s), Video CCIR, Y800, uncompressed AVI Device of recording: TIS DFG/USB2-lt Videograbber USB2.0 (Y800), XP32 Notebook Harddisk Time insertion: IOTA-VTI 7.OBSERVING CONDITIONS: Atmospheric transparency: fair Wind: No Star image stability: fair Minor planet visible: No Temperature: 282 Kelvin (+09 deg Celsius) 8.ADDITIONAL COMMENTS: Target star 3UC280-046704, +11.5mag, 62deg Elevation. Only Clear glass filter (Astronomik) for CCD protection was used. Video evaluation accomplished with VirtualDub 1.10.0 and Tangra v1.3.1.434. Prediction data used from EAON. Predicted event time was 23:55:37 UTC (+/- 11s) for my observing position. Predicted maximum duration was 1.1 seconds with a 6.2mag drop. Position was 110km from predicted central line in NE direction between path edge and 1-sigma line with a probability of 3.4%. No occultation event detected (It=20ms). 3-D Position and timing Garmin GPS18x LVC Receiving 09 satellites Horizontal Dilution of Precision 1.0 Geoidal separation 44.5m (Altitude 546.4MSL + 44.6 = 591.0 m in WGS84 datum) Gerhard Dangl gerhard@dangl.at www.dangl.at/ +--------------------------------------------------------------------+