+--------------------------------+ +--------------------------------+ ASTERIODAL OCCULTATION - REPORT FORM +--------------------------------+ +--------------------------------+ EAON & IOTA-ES EUROPEAN ASTEROIDAL OCCULTATION NETWORK INTERNATIONAL OCCULTATION TIMING ASSOCIATION EUROPEAN SECTION +--------------------------------+ +--------------------------------+ 1. DATE: 11 DEC 2012 STAR: 3UC237-056495 ASTEROID: (5801) Vasarely 2. OBSERVER Name: Stefano SPOSETTI Address: CH-6525 GNOSCA Email: stefanosposetti@ticino.com 3. OBSERVING STATION Nearest city: CH-6500 Bellinzona 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; "I"nterrupt-start; "D"isappearance; "B"link; "F"lash; "E"nd observation; "I"nterrupt-end; "R"eappearance; "O"ther (specify)) Personal Equation Substracted: No Event Time (UTC) Accuracy + Comments code: HH:MM:SS.ss S.ss -S : 20:22:59 -D : -R : -E : 20:26:43 5.TELESCOPE: Type: Newtonian Aperture: 400mm Focal length: 930mm (with focal reducer) Magnification: FOV 23x18arcmin Mount: equatorial Motor drive: yes 6. TIMING & RECORDING Timekeeping: GPS 1PPS (US Global Sat EM-406A) Sensor/Camera: Videocamera WAT-120N+, CCIR, 1/2" Sony CCD-Sensor ICX419ALL Videocamera settings: Shutter mode=1, Gain=max, Gamma=LO Device of recording: Personal computer, Hauppage HVR-1700(PCI), S-video input Virtualdub software, saved on Harddisk Mode of recording: Integration time=0.040s, CCIR, Huffyuv Time insertion device: IOTA-VTI, v.1.1.42 7. OBSERVING CONDITIONS Atmospheric transparency: good Wind: fair Star image stability: fair Minor Planet Visible: no 8. ADDITIONAL COMMENTS Tangra software was used to plot the lightcurve.