ASTEROIDAL OCCULTATION - REPORT FORM +------------------------------+ +-------------------------------+ | EAON | | IOTA/ES | | | | INTERNATIONAL OCCULTATION | | EUROPEAN ASTEROIDAL | | TIMING ASSOCIATION | | OCCULTATION NETWORK | | EUROPEAN SECTION | +------------------------------+ +-------------------------------+ 1 DATE: 2019 Sep 14, 21:51 (UTC) STAR: UCAC4-597-007906 mv: 11.9 mag ASTEROID: (675) Ludmilla mv: 11.8 mag (diam. 76 km) delta-magnitude: mv: 0.7 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 OUTSIDE of predicted shadow path, 94 km SE to C.L.) Probability: 8% Single station: Stefan MEISTER +----------------------------------+ 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 50 46.773 +/- 0.001 s : Start observation (UTC) D - : Disappearance (UTC) R - : Reappearance (UTC) E 21 52 13.625 +/- 0.001 s : End observation (UTC) Duration: - : (predicted: max. 11.1s) P 21 51 26 +/- 6.00 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 v2) AR0130CSSM, Pixel size 3.75my, QE 77% Website of the project: https://groups.io/g/d-vti-cam/ Settings: 640x480, 2x Binning, Exposure time 40ms (25 fps), Gain 10, Format SER 16 Bit No Dark Frame substracted Time insertion: within Camera, visual and digital timestamp 7 OBSERVING CONDITIONS: Atmospheric transp.: fair Moon: yes, distance 55° Wind: no Star image stability: good Altitude of star: 29° E 8 ADDITIONAL COMMENTS: Feed: IOTA Video recording software: DvtiCamControl v4.3.4 Light measurement tool: Tangra v3.6.19 Remarks: - Published by e-mail to planoccult@ls.vvs.be (Planoccult mailing list)