+--------------------------------+ +--------------------------------+ ASTERIODAL OCCULTATION - REPORT FORM +--------------------------------+ +--------------------------------+ EAON & IOTA-ES EUROPEAN ASTEROIDAL OCCULTATION NETWORK INTERNATIONAL OCCULTATION TIMING ASSOCIATION EUROPEAN SECTION +--------------------------------+ +--------------------------------+ 1. DATE: 12 Oct 2017 STAR: 4UC 388-004749 ASTEROID: (1657) Roemera 2. OBSERVER Name: Stefano SPOSETTI Address: 6525 GNOSCA - Switzerland Email: stefanosposetti@ticino.com 3. OBSERVING STATION Nearest city: CH-6525 Gnosca Longitude: 9d 1m 26.5s (E) Latitude: 46d 13m 53.2s (N) Altitude: 260m (WGS84) 4. TIMING OF EVENTS Occultation recorded: NEGATIVE Type of event: "S"tart observation; "E"nd observation; Event Time (UTC) Accuracy + Comments code: HH:MM:SS.ss S.ss -S : 22:51:51 -E : 22:53:23 5. TELESCOPE Type: Schmidt-Cassegrain, Celestron 11-inch Aperture: 280mm Focal length: 930mm (with focal reducer) Magnification: FOV 23x18 arcmin Mount: Equatorial Motor drive: No 6. TIMING & RECORDING Sensor/Camera: Videocamera WAT-910HX, CCIR, 1/2", ICX429ALL sensor Videocamera settings: Shutter = x16; Gain = 38/41; Gamma = 1.00 Device of recording: Imaging Source DFG/USB2-lt, Composite input, Virtualdub software, AVI file Huffyuv compressed Integration time: 0.320 s 7. OBSERVING CONDITIONS Atmospheric transparency: good Wind: no Star image stability: good Minor Planet Visible: - 8. ADDITIONAL COMMENTS Automatic Observation