+--------------------------------+ +--------------------------------+ ASTEROIDAL OCCULTATION - REPORT FORM +--------------------------------+ +--------------------------------+ EAON & IOTA-ES EUROPEAN ASTEROIDAL OCCULTATION NETWORK INTERNATIONAL OCCULTATION TIMING ASSOCIATION EUROPEAN SECTION +--------------------------------+ +--------------------------------+ 1. DATE: 17 Oct 2020 STAR: UCAC4 707-026912 ASTEROID: (78862) 2003 QS77 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 : 19:07:05 -E : 19:12:10 5. TELESCOPE -Type: Newton -Aperture: 420 mm -Focal length: 1640 mm -Mount: Equatorial -Motor drive: Yes 6. TIMING & RECORDING -Camera/Sensor: Videocamera QHY174M-GPS, SONY IMX174 CMOS sensor -Device of recording: Personal computer, USB3 input, SharpCap v. 3.2 software, saved on SSD Harddisk as SER file -binning 2x2, uncooled, camera bit depth = MONO16 -Timekeeping: GPS UTC clock -Integration time: 0.250 s 7. OBSERVING CONDITIONS -Atmospheric transparency: good -Wind: - -Star image stability: good -Minor Planet Visible: - 8. ADDITIONAL COMMENTS -Occultwatcher, IBEROC prediction, Rank = 5, Probability = 3.1 %