ASTEROIDAL OCCULTATION - REPORT FORM +------------------------------+ +-------------------------------+ | EAON | | IOTA/ES | | | | INTERNATIONAL OCCULTATION | | EUROPEAN ASTEROIDAL | | TIMING ASSOCIATION | | OCCULTATION NETWORK | | EUROPEAN SECTION | +------------------------------+ +-------------------------------+ 1 DATE: 2019 Sep 29, 03:02 (UTC) STAR: UCAC4-418-000694 mv: 12.2 mag ASTEROID: (52) Europa mv: 10.8 mag (diam. 304 km) delta-magnitude: mv: 0.26 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: N 47 31 10.4 (WGS84) Longitude: E 08 34 14.3 (WGS84) Altitude: 550 m (MSL) (WGS84) Predicted observation: yes (located INSIDE of predicted shadow path, 131 km S to C.L.) Probability: 100% Single station: Stefan MEISTER +----------------------------------+ 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 03 01 25.662 +/- 0.001 s : Start observation (UTC) D 03 02 10.90 +/- 0.06 s : Disappearance (UTC) R 03 02 21.37 +/- 0.33 s : Reappearance (UTC) E 03 03 04 975 +/- 0.001 s : End observation (UTC) Duration: 10.470 s : (predicted: max. 25.4 s) M 03 02 16.135 +/- 0.20 s : Mid-event (UTC) P 03 02 08 +/- 2.00 s : Predicted time (UTC) 5 TELESCOPE: Type: Newton Reflector f/5 Aperture: 500 mm Focal length: 2500 mm Magnification: focal (resulting field of view: 6.6' in x-axis) Mount: equatorial Motor drive: yes 6 TIMING & RECORDING: Time source: GPS Quality of signal: Accurancy 2m Camera/Sensor: Digital Camera with integrated GPS-VTI (Prototype v1) AR0130CSSM, Pixel size 3.75my, QE 77% Website of the project: https://groups.io/g/d-vti-cam/ Settings: 640x480, 2x Binning, Exposure time 83ms (12 fps), Gain 5, Format SER 16 Bit No Dark Frame substracted Time insertion: within Camera, visual and digital timestamp 7 OBSERVING CONDITIONS: Atmospheric transp.: fair, turbulences Moon: no Wind: no Star image stability: good Altitude of star: 18° SW in Cet 8 ADDITIONAL COMMENTS: Feed: IOTA Video recording software: DvtiCamControl v4.3.4 Light measurement tool: Tangra v3.6.19 and Occult/AOTA v4.8.0 Remarks: - Published by e-mail to planoccult@ls.vvs.be (Planoccult mailing list)