ASTEROIDAL OCCULTATION - REPORT FORM +------------------------------+ +------------------------------+ | EAON | | IOTA/ES | | | | INTERNATIONAL OCCULTATION | | EUROPEAN ASTEROIDAL | | TIMING ASSOCIATION | | OCCULTATION NETWORK | | EUROPEAN SECTION | +------------------------------+ +------------------------------+ 1 DATE: 28 December 2011 STAR: UCAC2 36618818 ASTEROID: Althaea N: 119 2 OBSERVER_1: Name: Andreas Papalamprou E-mail: Address: ........? str., ............?, Greece OBSERVER_2: Theofilos ..............? OBSERVER_3: Alexis ..............? 3 OBSERVING STATION: Nearest city: Patras, GR Station: Kastritsi Latitude: 38°16'53.04" N Longitude: 21°47'36.09" E (Google Earth) Altitude: 130 m +----------------------------------+ 4 TIMING OF EVENTS: | | | OCCULTATION RECORDED: NEGATIVE | | | +----------------------------------+ Type of event Start observation Interrupt-start Disappearance Blink Flash End observation Jnterrupt-end Reappearance Other (specify) Comments Event Time (UT) P.E. Acc. Code HH MM SS.ss S.ss S.ss S - 18 27 00 - - : - - - : D - - - : R - - - : - - - : E - 18 29 00 - - : Duration : Mid-event : 5 TELESCOPE: William Optics Type: refractor Aperture: 110 mm Mount: ............? , GOTO Motor drive: Yes 6 TIMING & RECORDING: Time source: CDF-77 RADIO Clock to sync laptop clock manually Sensor: ATIK 16-HR Recording: CCD Drift Scan Time insertion (specify): Event insertion (specify): 7 OBSERVING CONDITIONS: Atmospheric transparency: ....? Wind: ....? Temperature: ....? °C Star image stability: Faint star trail Minor planet visible: No 8 ADDITIONAL COMMENTS: .......................? URL/Link for FIT file: http://www.astrovox.gr/forum/download.php?id=32812 Exposure time was 2 minutes. Exposure started at UT 18:27:00 A DCF-77 radio clock was used for synchronization with the laptop clock. Unfortunately, the target dissapeard from the ccd field at about 1min 22.5sec after start of exposure. Exposure started when the target was almost at field center.