ASTEROIDAL OCCULTATION - REPORT FORM +------------------------------+ +-------------------------------+ | EAON | | IOTA/ES | | | | INTERNATIONAL OCCULTATION | | EUROPEAN ASTEROIDAL | | TIMING ASSOCIATION | | OCCULTATION NETWORK | | EUROPEAN SECTION | +------------------------------+ +-------------------------------+ 1 DATE: 2021 Mar 08, 20:28 (UTC) STAR: UCAC4 568-042733 mv: 12.0 mag ASTEROID: (121360) 1999 TP56 mv: 20.4 mag (diam. 2.0 km) combined magnitude: mv: 12.0 mag delta-magnitude: mv: 8.4 mag 2 OBSERVER: Name: Andreas SCHWEIZER E-mail: aschweiz@mac.com Address: Strumbergächerstr. 3A, 8907 Wettswil, Switzerland 3 OBSERVING STATION: Nearest city: Zürich Station: Andreas SCHWEIZER Latitude: N47 20' 30.800" (WGS84) Longitude: E08 28' 22.800" (WGS84) Altitude: 580 m (MSL) (WGS84) Predicted observation: no (Distance 15.4 km from C.L.) Probability: 1.0 percent Single station: Andreas SCHWEIZER +----------------------------------+ 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 20 26 54.985 +/- 0.001 s : Start observation (UTC) D +/- s : Disappearance (UTC) R +/- s : Reappearance (UTC) E 20 29 55.964 +/- 0.001 s : End observation (UTC) Duration: SS.sss +/- s : (predicted: max. 1.1 s) P 20 28 25.200 +/- 41.768 s : Predicted time (UTC) 5 TELESCOPE: Type: Reflector 107mm Aperture: 107 mm Focal length: 600 mm Magnification: focal Mount: Skywatcher EQ-6 Pro Motor drive: yes 6 TIMING & RECORDING: Time source: GPS Quality of signal: Accuracy 4m Camera/Sensor: Digital Camera with integrated GPS-VTI (DVTI CAM Prototype V3, serial #12) Image Sensor Sony IMX174LLJ-C (1/1.2" 1920x1200 5.86um CIS) Website of the project: https://groups.io/g/d-vti-cam/ Settings: 960x600, Exposure time 250 ms, Gain +32 dB D, Binning 2x2, Format ADV 16-bit Time insertion: Digital GNSS timestamp into image sensor data stream 7 OBSERVING CONDITIONS: Atmospheric transp.: good Moon: below horizon Wind: no Star image stability: good Altitude of star: 66 deg Azimut of star: 183 deg in Gemini 8 ADDITIONAL COMMENTS: Feed: ITALOccult Events Video recording software: DVTI Cam Control v4.11.5 Light measurement tool: Tangra Remarks: Published by e-mail to planoccult@ls.vvs.be (Planoccult mailing list)