ASTEROIDAL OCCULTATION - REPORT FORM +------------------------------+ +-------------------------------+ | EAON | | IOTA/ES | | | | INTERNATIONAL OCCULTATION | | EUROPEAN ASTEROIDAL | | TIMING ASSOCIATION | | OCCULTATION NETWORK | | EUROPEAN SECTION | +------------------------------+ +-------------------------------+ 1 DATE: 2019 Dec 29, 21:54 (UTC) STAR: UCAC4 636-040753 mv: 13.9 mag ASTEROID: (1320) Impala mv: 16.3 mag (diam. 37.3 km) delta-magnitude: mv: 2.5 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, 19 km N to C.L.) Probability: 33% 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 53 39.544 +/- 0.02 s : Start observation (UTC) D - : Disappearance (UTC) R - : Reappearance (UTC) E 21 55 20.544 +/- 0.02 s : End observation (UTC) Duration: - : (predicted: max. 2.1s) P 21 54 20 +/- 2.00 s : Predicted time (UTC) 5 TELESCOPE: Type: Ritchey-Chrétien Reflector (Officina Stellare Pro RC 360) Aperture: 360 mm Focal length: 2880 mm f/8 Magnification: focal (resulting field of view: 13.5' in x-axis) Mount: equatorial (10micron GM4000) Motor drive: yes 6 TIMING & RECORDING: Time source: NTP (GPS cable not plugged in on time) Quality of signal: Accurancy ?m Camera/Sensor: Digital Camera with integrated GPS-VTI (Prototype v2b, #8) IMX174LLJ, Pixel size 5.86my, QE ~77% @ 530nm Website of the project: https://groups.io/g/d-vti-cam/ Settings: 960x600, 2x Binning, Exposure time 1000ms (1 fps), Gain +10dB, Format SER 16 Bit no Dark Frame substracted 7 OBSERVING CONDITIONS: Atmospheric transp.: fair Moon: 14% @ 144° distance Wind: no Star image stability: good Altitude of star: 62° Azimut of star: 99° in Auriga 8 ADDITIONAL COMMENTS: Feed: IBEROC Video recording software: DvtiCamControl v4.6.0 Light measurement tool: Tangra v3.6.19 Remarks: Parallel observation with Andreas Schweizer with different telescopes at the same location Published by e-mail to planoccult@ls.vvs.be (Planoccult mailing list)