ASTEROIDAL OCCULTATION - REPORT FORM +------------------------------+ +-------------------------------+ | EAON | | IOTA/ES | | | | INTERNATIONAL OCCULTATION | | EUROPEAN ASTEROIDAL | | TIMING ASSOCIATION | | OCCULTATION NETWORK | | EUROPEAN SECTION | +------------------------------+ +-------------------------------+ 1 DATE: 2022 Jul 05, 21:28 (UTC) STAR: UCAC4 405-107074 mv: 14.5 mag ASTEROID: (374) Burgundia mv: 12.4 mag (diam. 45.0 km) combined magnitude: mv: 12.3 mag delta-magnitude: mv: 0.1 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 Observatory 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 4.6 km from C.L.) Probability: 99.3 percent +----------------------------------+ 4 TIMING OF EVENT: | | | OCCULTATION RECORDED: POSITIVE | | | +----------------------------------+ 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 28 05.711 +/- 0.001 s : Start observation (UTC) D 21 28 46.831 +/- * s : Disappearance (UTC) R 21 28 51.234 +/- * s : Reappearance (UTC) E 21 29 05.840 +/- 0.001 s : End observation (UTC) Duration: 4.403 +/- * s : (predicted: max. 4.3 s) M 21 28 49.033 +/- * s : Mid-event (UTC) P 21 28 35.961 +/- 4.147 s : Predicted time (UTC) * Accurancy with confidence intervals from PyOTE: magDrop: 0.225 +/- 0.046 (0.95 ci) snr: 1.56 D time: [21:28:46.8310] D: 0.6800 containment intervals: {+/- 0.1225} seconds D: 0.9500 containment intervals: {+/- 0.5155} seconds D: 0.9973 containment intervals: {+/- 1.3066} seconds R time: [21:28:51.2340] R: 0.6800 containment intervals: {+/- 0.1225} seconds R: 0.9500 containment intervals: {+/- 0.5155} seconds R: 0.9973 containment intervals: {+/- 1.3066} seconds Duration (R - D): 4.4030 seconds Duration: 0.6800 containment intervals: {+/- 0.2381} seconds Duration: 0.9500 containment intervals: {+/- 0.7172} seconds Duration: 0.9973 containment intervals: {+/- 1.5758} seconds 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 3 m Camera/Sensor: Digital Camera with integrated GPS-VTI (DVTI CAM Prototype V3, serial #15) 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 100 ms, Gain +20 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.: good Moon: 38 percent lit, distance 106 deg Wind: no Star image stability: fair Altitude of star: 26 deg Azimut of star: 143 deg in Aquila 8 ADDITIONAL COMMENTS: Feed: CentralEurope Video recording software: DVTI Cam Control v5.0.1-0 Light measurement tool: PyMovie v3.4.1 and PYOTE v4.6.4 Remarks: Published by e-mail to planoccult@ls.vvs.be (Planoccult mailing list)