+--------------------------------+ +--------------------------------+ ASTERIODAL OCCULTATION - REPORT FORM +--------------------------------+ +--------------------------------+ EAON & IOTA-ES EUROPEAN ASTEROIDAL OCCULTATION NETWORK INTERNATIONAL OCCULTATION TIMING ASSOCIATION EUROPEAN SECTION +--------------------------------+ +--------------------------------+ 1. DATE: 19 mar 2017 STAR: 4U 372-72875 ASTEROID: (16939) 1998 FP121 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 : 02:37:25 -E : 02:40:06 5. TELESCOPE Type: Schmidt-Cassegrain, Celestron 11-inch Aperture: 280mm Focal length: 930mm (with focal reducer) Magnification: FOV 23x18 arcmin Mount: Equatorial Motor drive: Yes 6. TIMING & RECORDING Sensor/Camera: Videocamera WAT-910HX-RC, CCIR, 1/2", ICX429ALL sensor Videocamera settings: Shutter = 1/50; Gain = 41/41; Gamma = 1.00 Device of recording: Personal computer, Imaging Source DFG/SV1 PCI, composite input, Virtualdub, saved on Harddisk as Huffyuv compressed file Timekeeping: GPS 1PPS (US Global Sat EM-406A) Time insertion device: IOTA-VTI, v.1.1.42 Integration time: 0.040 s 7. OBSERVING CONDITIONS Atmospheric transparency: good-fair Wind: no Star image stability: good Minor Planet Visible: - 8. ADDITIONAL COMMENTS -