+--------------------------------+ +--------------------------------+ ASTEROIDAL OCCULTATION - REPORT FORM +--------------------------------+ +--------------------------------+ EAON & IOTA-ES EUROPEAN ASTEROIDAL OCCULTATION NETWORK INTERNATIONAL OCCULTATION TIMING ASSOCIATION EUROPEAN SECTION +--------------------------------+ +--------------------------------+ 1. DATE: 30 Dec 2021 STAR: HIP 4761 ASTEROID: (7641) Cteatus (1986 TT6) 2. OBSERVER Name: Stefano SPOSETTI Address: 6525 GNOSCA - Switzerland Email: stefanosposetti@ticino.com 3. OBSERVING STATION Nearest city: CH-6600 Locarno Station: Specola Solare Longitude (dd mm ss.s): 08 47 16.0 (E) Latitude (dd mm ss.s): 46 10 20.1 (N) Altitude: 368 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 : 20:12:40 -E : 20:22:40 5. TELESCOPE Type: Schmidt-Cassegrain, Celestron 8-inch Aperture: 200 mm Focal length: ~ 600 mm (with focal reducer) Magnification: - Mount: Equatorial Motor drive: Yes 6. TIMING & RECORDING -Camera/Sensor: Videocamera WAT-910HX-RC, CCIR, 1/2", ICX429ALL sensor -Videocamera settings: Shutter = 1/50 s; Gain = 39/41; Gamma = 1.00 -Device of recording: Personal computer -Videograbber: Logilink USB Grabber VG0001, composite input -Software: Virtualdub v. 1.10.4, saved on Harddisk as Huffyuv compressed file -Time insertion device: KIWI-OSD with GPS Garmin 18 LVC -Integration time: 0.040 s 7. OBSERVING CONDITIONS -Atmospheric transparency: fair/good -Wind: - -Star image stability: good -Minor Planet Visible: - 8. ADDITIONAL COMMENTS -Occultwatcher, IOTA prediction, Rank = 74, Probability = ~46 %