ASTEROIDAL OCCULTATION - REPORT FORM +------------------------------+ +-------------------------------+ | EAON | | IOTA/ES | | | | INTERNATIONAL OCCULTATION | | EUROPEAN ASTEROIDAL | | TIMING ASSOCIATION | | OCCULTATION NETWORK | | EUROPEAN SECTION | +------------------------------+ +-------------------------------+ 1 DATE: 2019 February 05, 22:23 (UTC) STAR: HIP 48455 mv: 3.4 mag (!) ASTEROID: (34339) 2000 QH218 mv: 17.5 mag (diam. 11 km) combined magnitude: mv: 3.4 mag delta-magnitude: mv: 14.1 mag 2 OBSERVER: Name: Stefan MEISTER E-mail: meister@dolphins.ch Address: Sandgruebstr. 9, CH-8193 Eglisau, Switzerland 3 OBSERVING STATION: Nearest city: Mühlrüti/Fischingen, Switzerland Station: Hulftegg (mobile) Latitude: N 47 21 45 (WGS84) Longitude: E 08 58 03 (WGS84) Altitude: 950 m (MSL) (WGS84) Predicted observation: yes (located inside of predicted path) 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 22 21 25.074 +/- 0.031 s : Start observation (UTC) D - : Disappearance (UTC) R - : Reappearance (UTC) E 22 24 56.929 +/- 0.031 s : End observation (UTC) Duration: - s : (predicted: max. 1.4 s) M - : Mid-event (UTC) P 22 23 14 +/-14.0 s : Predicted time (UTC) 5 TELESCOPE: Type: Borg 125ED Apochromat Aperture: 125 mm Focal length: 800 mm Magnification: focal (resulting field of view: 20.7' in x-axis) Mount: Classic EQ-6, equatorial Motor drive: yes 6 TIMING & RECORDING: Time source: GPS Camera/Sensor: Digital Camera with integrated GPS-VTI (Prototype) AR0130CSSM, Pixel size 3.75my, QE 77% Settings: 1280x960, 1x Binning, Gain 14, Exposure time 0.031s, Output format SER Time insertion: within Camera, binary and visual timestamp 7 OBSERVING CONDITIONS: Atmospheric transp.: very good Moon: no Wind: no Star image stability: very good Minor planet visible: no 8 ADDITIONAL COMMENTS: Feed: IOTA Video recording software: SharpCap 3.1.5220 Light measurement tool: Tangra v3.6 Comparison Stars: 1 star Published by e-mail to planoccult@ls.vvs.be (Planoccult mailing list)