ASTEROIDAL OCCULTATION - REPORT FORM +------------------------------+ +------------------------------+ | EAON | | IOTA/ES | | | | INTERNATIONAL OCCULTATION | | EUROPEAN ASTEROIDAL | | TIMING ASSOCIATION | | OCCULTATION NETWORK | | EUROPEAN SECTION | +------------------------------+ +------------------------------+ 1 DATE: 2018 April 21, predicted time: 00:31:46 UT STAR: TYC 0408-00029-1 ASTEROID: (130) Elektra 2 OBSERVER: Name: Martin Mutti E-mail: mutti_m@bluewin.ch Address: Stockerenweg 1, 3114 Wichtrach, Switzerland 3 OBSERVING STATION: Uecht Nearest city: 3087 Niedermuhlern, Switzerland Station: Sternwarte Uecht (IAU Observatory Code: 009) Latitude: N 46° 51' 09" (WGS84) Longitude: E 07° 27' 10" (WGS84) Altitude: 958.8 m (MSL) (WGS84) +----------------------------------+ 4 TIMING OF EVENTS: | | | 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 O = Other Event Time (UTC) Acc. Comments Code HH MM SS.ss S.ss S 00 31 40.00: Start observation (UTC) E 00 32 01.00: End observation (UTC) D 00 31 42.245: Disappearance (UTC) R 00 31 58.684: Reappearance (UTC) 5 TELESCOPE: Type: Newton Aperture: 320 mm Focal length: 1860mm Magnification: focal (resulting field of view: 12' x 9') Mount: equatorial Motor drive: yes 6 TIMING & RECORDING: Time source: GPS IOTA VTI Sensor: 1/2" Watec 910HX-RC (CCIR) (6.47 x 4.83 mm) 752 x 582 px (8.6 x 8.3 my) Frame Grabber: EZCAP USB Video-Grabber Time insertion: GPS 7 OBSERVING CONDITIONS: Atmospheric transp.: fair Wind: 27 m/s Temperature: +15°C Minor planet visible: yes 8 ADDITIONAL COMMENTS: Shutter mode: 1/50 s Integration time (It) = 0.020 s Correction time (Ct) = -0.020 s (evaluation in frames) Tolerance value = +/-0.020 s (evaluation in frames) Reported event time = Vt + Ct (correction time applied) Video editing software: VirtualDub Light measurement tool: Tangra/AOTA v4.5.4.0