ASTEROIDAL OCCULTATION - REPORT FORM +------------------------------+ +-------------------------------+ | EAON | | IOTA/ES | | | | INTERNATIONAL OCCULTATION | | EUROPEAN ASTEROIDAL | | TIMING ASSOCIATION | | OCCULTATION NETWORK | | EUROPEAN SECTION | +------------------------------+ +-------------------------------+ 1 DATE: 2023 Feb 10, 00:29 (UTC) STAR: UCAC4 637-037278 mv: 12.6 mag ASTEROID: (24127) 1999 VZ52 mv: 16.9 mag (diam. 24.0 km) combined magnitude: mv: 12.6 mag delta-magnitude: mv: 4.3 mag 2 OBSERVER: Name: Stefan Meister E-mail: meister@dolphins.ch Address: Sandgruebstr. 9, CH-8193 Eglisau, Switzerland 3 OBSERVING STATION: Nearest city: Buelach, Switzerland Station: Observatory Buelach (MPC Obs. Code: 167) http://www.sternwartebuelach.ch/ Latitude: N47 31' 10.402" (WGS84) Longitude: E08 34' 14.300" (WGS84) Altitude: 550 m (MSL) (WGS84) Single station: yes Predicted observation: yes (Distance 5.2 km from C.L.) Probability: 39.4 percent 4 TIMING & RECORDING: Already included in the SODIS form (not again repeated here) 5 TELESCOPE: Type: Newton Reflector f/5 Aperture: 500 mm Focal length: 2500 mm Magnification: focal (resulting field of view: 15.5' in x-axis) Mount: equatorial Motor drive: yes 6 TIMING & RECORDING: Time source: GPS Quality of signal: Accuracy 7 m Camera/Sensor: Digital Camera with integrated GPS-VTI (DVTI+CAM, serial #13) Image Sensor Sony IMX430LLJ-C (1.1" 1624x1240 4.5um CIS) Website of the project: https://groups.io/g/d-vti-cam/ Settings: 812x620, Exposure time 33 ms, Gain +24 dB, Binning 2x2, Format ADV 16-bit without Dark Frame but correction algorithm "Fixed pattern noise red." applied Time insertion: Digital GNSS timestamp into image sensor data stream 7 OBSERVING CONDITIONS: Atmospheric transp.: fair Moon: 84 percent lit, distance 88 deg Wind: - Star image stability: good Altitude of star: 50 deg Azimut of star: 276 deg in Auriga 8 ADDITIONAL COMMENTS: Feed: UKOCL Video recording software: DVTI Cam Control v5.5.2-6 Light measurement tool: PyMovie v3.7.0 Remarks: