+--------------------------------+ +--------------------------------+ ASTEROIDAL OCCULTATION - REPORT FORM +--------------------------------+ +--------------------------------+ EAON & IOTA-ES EUROPEAN ASTEROIDAL OCCULTATION NETWORK INTERNATIONAL OCCULTATION TIMING ASSOCIATION EUROPEAN SECTION +--------------------------------+ +--------------------------------+ 1. DATE: 10 Oct 2019 STAR: UCAC4 475-130153 ASTEROID: (20412) 1998 QG73 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: 260 m (WGS84) 4. TIMING OF EVENTS Occultation recorded: NEGATIVE Type of event: "S"tart observation; "E"nd observation; Personal Equation Substracted: - Event Time (UTC) Accuracy + Comments code: HH:MM:SS.ss S.sss -S : 21:31:08 -E : 21:35:45 5. TELESCOPE -Type: Schmidt-Cassegrain, Celestron 11-inch -Aperture: 280 mm -Focal length: 930 mm (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 = x2; Gain = 41/41; Gamma = 1.00 -Device of recording: Personal computer, Imaging Source DFG/SV1 PCI, composite input, Virtualdub acquiring software, saved on Harddisk as compressed Lagarith 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 -Wind: - -Star image stability: good -Minor Planet Visible: - 8. ADDITIONAL COMMENTS -