ASTEROIDAL OCCULTATION - REPORT FORM +------------------------------+ +-------------------------------+ | EAON | | IOTA/ES | | | | INTERNATIONAL OCCULTATION | | EUROPEAN ASTEROIDAL | | TIMING ASSOCIATION | | OCCULTATION NETWORK | | EUROPEAN SECTION | +------------------------------+ +-------------------------------+ 1 DATE: 2022 May 14, 21:04 (UTC) STAR: TYC 2951-00488-1 mv: 8.6 mag ASTEROID: 19P/Borrelly mv: 15.1 mag (diam. 34.0 km) combined magnitude: mv: 8.6 mag delta-magnitude: mv: 6.5 mag 2 OBSERVER: Name: Peter Englmaier E-mail: peter@englmaier.ch Address: Furttalstrasse 97, 8046 Zurich, Switzerland 3 OBSERVING STATION: Nearest city: Zurich Station: Private Observatory Latitude: N47 25' 21.144" (WGS84) Longitude: E08 29' 42.932" (WGS84) Altitude: 467 m (MSL) (WGS84) Predicted observation: no (Distance 117.7 km from C.L.) Probability: 1.2 percent Single station: yes +----------------------------------+ 4 TIMING OF EVENT: | | | OCCULTATION RECORDED: NEGATIVE | | | +----------------------------------+ Type of event: S = Start observation I = Interrupt-start D = Disappearance B = Blink F = Flash E = End observation I = Interrupt-end R = Reappearance M = Mid-event P = Predicted time Event Time (UTC) Acc. Comments Code HH MM SS.sss S.sss S 21 02 00.099 +/- 0.000 s : Start observation (UTC) E 21 05 51.717 +/- 0.000 s : End observation (UTC) P 21 04 01.198 +/- 2.939 s : Predicted time (UTC) 5 TELESCOPE: Type: RC Aperture: 405 mm Focal length: 3240 mm Mount: GM3000HPS 6 TIMING & RECORDING: Time source: GPS Quality of signal: Accuracy n/a m Camera/Sensor: Digital Camera with integrated GPS-VTI (DVTI CAM V3) Image Sensor Sony IMX174LLJ-C (1/1.2" 1920x1200 5.86um CIS) Website of the project: https://groups.io/g/d-vti-cam/ Settings: 640x400, Exposure time 50ms, Gain +24dB, Binning 3x3, Format ADV 16-bit with Dark Frame Time insertion: Digital GNSS timestamp into image sensor data stream 7 OBSERVING CONDITIONS: Atmospheric transp.: Moon: 98 percent lit, distance 111 deg Wind: No wind Star image stability: fair Altitude of star: 31 deg Azimut of star: 301 deg in Auriga 8 ADDITIONAL COMMENTS: Feed: Comet Occultations Video recording software: DVTI Cam Control v5.0.0-0 Light measurement tool: Remarks: Published by e-mail to planoccult@ls.vvs.be (Planoccult mailing list)