ASTEROIDAL OCCULTATION - REPORT FORM +------------------------------+ +------------------------------+ | EAON | | IOTA/ES | | | | INTERNATIONAL OCCULTATION | | EUROPEAN ASTEROIDAL | | TIMING ASSOCIATION | | OCCULTATION NETWORK | | EUROPEAN SECTION | +------------------------------+ +------------------------------+ 1 DATE (YYYY/MM/DD): 2017/10/05 STAR: UCAC4 410_143659 ASTEROID: Triton N°: N1 2 OBSERVERS: Name: RUI GONCALVES EAON Abbr: GCV Name: MAXIMO FERREIRA E-mail: rui.goncalves@ipt.pt Address: Urb.Boavista, Lote 46, Linhaceira, 2305-114 Asseiceira(TMR) 3 OBSERVING STATION: Nearest city: Constancia - Portugal Station: Observatorio Astronomico - Centro Ciencia Viva de Constancia (CCVC) Longitude (DD MM SS.s): W 008 19 25.2 (WGS84) Latitude (DD MM SS.s): N 39 29 41.6 (WGS84) Altitude (m): 147 m (WGS84) Single|Multiple station: Single +----------------------------+ 4 TIMING OF EVENTS: | | | EVENT REPORTED: POSITIVE | | | +----------------------------+ Event code S: observation Start I: Interruption start D: Disappearance J: Interruption end R: Reappearance B: Blink F: Flash E: observation End O: Other (specify) Comments Event Time (UT) P.E. Acc. Code HH:MM:SS.ss S.ss S.ss S - 23:37:08.00 - - 0.32 : Synchronisation by GPS (GPSBOXSPRITE2) - - - : D - 23:47:27.10 - - 0.32 : 50% of dimming F - 23:48:50.30 - - 0.32 : maxium intensity of central flash R - 23:50:14.14 - - 0.32 : 50% of dimming - - - : E - 23:54:03.0 - - 0.32 : Duration : 167.04 s Mid-event : 23:48:50.6 Predicted Mid-event : 23:48:58 5 TELESCOPE: Type: RC Aperture: 508 mm Focal length: 3454 mm F/6.8 Mount: Paramount ME-Equatorial Motor drive: Yes Filter: none 6 TIMING & RECORDING: Time source: GPS Sensor: wATEC910HX-RC (x32 integration fields) Recording: x32 integration (0.64 s) Recording device: avi video with VirtualDub (W7 32b) Time insertion: VTI (GPSBOXSPRITE2) 7 OBSERVING CONDITIONS: Atmospheric transparency: good Wind: yes Temperature: 20°C Star image stability: fair to good Minor planet visible: yes 8 ADDITIONAL COMMENTS: x32 integration with Watec910HX-RC. Reported times have been corrected by -0.66 s from stamped time at avi LC from Tangra. Huge central flash detected.