+--------------------------------+ +--------------------------------+ ASTERIODAL OCCULTATION - REPORT FORM +--------------------------------+ +--------------------------------+ EAON & IOTA-ES EUROPEAN ASTEROIDAL OCCULTATION NETWORK INTERNATIONAL OCCULTATION TIMING ASSOCIATION EUROPEAN SECTION +--------------------------------+ +--------------------------------+ 1.DATE: 2011/09/15 STAR: 3UC133-367619 ASTEROID: (5036) Tuttle 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 13.0 (WGS84) Longitude: E 15 14 08.6 (WGS84) Altitude: 593m (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: 19:00:06 I-s: 19:00:38 moving clouds I-e: 19:01:40 I-s: 19:03:17 moving clouds I-e: 19:03:40 E: 19:04:17 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 Garmin 18x LVC + KIWI-OSD Sensor/Camera: WAT-120N, CCIR, 1/2" Sony CCD-Sensor ICX419ALL Mode of recording: It=640ms (1.5625 Img/s), Video CCIR, Y800, uncompressed AVI Device of recording: TIS DFG/USB2-lt Videograbber USB2.0 (Y800), Notebook Harddisk Time insertion: KIWI-OSD 7.OBSERVING CONDITIONS: Atmospheric transparency: bad (moving clouds) Wind: No Star image stability: fair Minor planet visible: No Temperature: 280 Kelvin (+07 deg Celsius) 8.ADDITIONAL COMMENTS: Target star 3UC133-367619, +13.0mag, 16deg Elevation. Relative long integration time of 640ms due to moving clouds near horizon. Only Clear glass filter (Astronomik) for CCD protection was used. Video evaluation accomplished with VirtualDub 1.10.0 and Tangra v1.3.1.434. Predicted event time was 19:02:09 UTC for my observing position. Predicted maximum duration was 1.8 seconds with a 4.8mag drop. Position was 5km from predicted central line in N direction between center line and path edge with a probability of 3.1%. No occultation detected (It=640ms). 3-D Position and timing Garmin GPS18x LVC Receiving 09 satellites Horizontal Dilution of Precision 0.9 Geoidal separation 44.5m (Altitude 548.4MSL + 44.5 = 592.9 m in WGS84 datum) Gerhard Dangl gerhard@dangl.at www.dangl.at/ +--------------------------------------------------------------------+