+--------------------------------+ +--------------------------------+ ASTERIODAL OCCULTATION - REPORT FORM +--------------------------------+ +--------------------------------+ EAON & IOTA-ES EUROPEAN ASTEROIDAL OCCULTATION NETWORK INTERNATIONAL OCCULTATION TIMING ASSOCIATION EUROPEAN SECTION +--------------------------------+ +--------------------------------+ 1.DATE: 2008/04/13 STAR: TYC 1882-00189-1 ASTEROID: (351) Yrsa 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 13.3 (WGS84) Longitude: E 15 14 06.7 (WGS84) Altitude: 607m (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: 20:18:45 E: 20:23:11 5.TELESCOPE: Type: Newton Focal length: 1200mm Aperture: 254 mm Magnification: video/primary focus/FOV 15.8'x13.7' (640x576, 1.48"x1.43" per pixel) Mount: Equatorial Motor drive: Yes 6.TIMING & RECORDING: Timekeeping: GPS 1PPS Garmin 18 LVC + KIWI-OSD Sensor/Camera: WAT-902H2 Ultimate, CCIR, 1/2" Sony CCD-Sensor ICX429ALL Mode of recording: It=20ms (50 Img/s), Video CCIR, AVI, YUY2, Huffyuv, Device of recording: Xpert V-Stream Videograbber USB2.0, Notebook Harddisk Time insertion: KIWI-OSD 7.OBSERVING CONDITIONS: Atmospheric transparency: good Wind: No Star image stability: good Minor planet visible: No Temperature: 276 Kelvin (+03 deg Celsius) 8.ADDITIONAL COMMENTS: Video evaluation accomblished with VirtualDub1.7.8 and Limovie0928c No occultation detected (It=20ms) Only Clear glass filter (Astronomik) for CCD protection was used Target star TYC 1882-00189-1, +10.3mag, 34deg Elevation Limit on recorded video fields without editing was TYC 1882 331, +11.6mag 3-D Position and timing Garmin GPS18 LVC Receiving 09 satellites Horizontal Dilution of Precision 1.0 Geoidal separation 44.4m (Altitude 562.9MSL + 44.4 = 607.3m in WGS84 datum) Gerhard Dangl gerhard@dangl.at www.dangl.at/ +--------------------------------------------------------------------+