ASTEROIDAL OCCULTATION - REPORT FORM - EAON EUROPEAN ASTEROIDAL OCCULTATION NETWORK 1. DATE: 26 dicembre 2019 STAR: UCAC4 -508-025991 ASTEROID: (798) Ruth 2.OBSERVER Name: Andrea MANNA Abr.: MAA Phone: 0041 91 859 06 61 Address: via alla Motta – Cugnasco (Switzerland) Email: andreamanna@sunrise.ch andrea.manna@laregione.ch 3.OBSERVING STATION Station: Cugnasco (c.Ti Switzerland) Nearest city: Locarno Longitude: 08d 55m 13.8s E Latitude: 46d 10m 35.5s N Altitude: 240m (Google Earth) 4.TIMING OF EVENTS Occultation recorded: POSITIVE Type of event: “S”tart observation: 00: 42: 02 UT “E”nd observation: 00: 46: 26 “D”isappearance: 00: 44: 16.069 +/- 0.160 s UT (with Dangl correction) “R”eappearance: 00: 44: 19.429 +/- 0.160 s Duration: 3.36 sec +/- 0.32 s Personal Equation Substracted: Event Time (UTC) P.E. Accuracy + Comments code: HH:MM:SS.ss S.ss -S : -E : 5.TELESCOPE Type: Schmidt-Cassegrain Aperture: 200mm Focal length: 600mm (with focal reducer) Mount: Equatorial Motor drive: Yes 6.TIMING & RECORDING Timekeeping: GPS 1PPS (US Global Sat EM-406A) Videocamera Watec Wat-910HX/RC Shutter mode= X 16, Gain= 41, Gamma=1.00 Mode of recording Device of recording: IOTA-VTI, v.1.1.42 7.OBSERVING CONDITIONS Atmospheric transparency: Wind: yes Star image stability: good Temperature: Minor Planet Visible: no 8.ADDITIONAL COMMENTS