+--------------------------------+ +--------------------------------+ ASTERIODAL OCCULTATION - REPORT FORM +--------------------------------+ +--------------------------------+ EAON & IOTA-ES EUROPEAN ASTEROIDAL OCCULTATION NETWORK INTERNATIONAL OCCULTATION TIMING ASSOCIATION EUROPEAN SECTION +--------------------------------+ +--------------------------------+ 1. DATE: April 24, 2018 STAR: 4U 296-82584 ASTEROID: (1244)Deira 2. OBSERVER Name: Alberto OSSOLA Address: 6933 Muzzano (Switzerland) Email: aossola@bluewin.ch 3. OBSERVING STATION Nearest city: CH-6900 Lugano Longitude: 8d 55m 10.5s (E) Latitude: 45d 59m 50.6s (N) Altitude: 350m (From: Google Earth) 4. TIMING OF EVENTS Occultation recorded: negative Type of event: "S"tart observation; "I"nterrupt-start; "D"isappearance; "B"link; "F"lash; "E"nd observation; "I"nterrupt-end; "R"eappearance; "O"ther (specify) Personal Equation Substracted: No Event Time (UTC) Accuracy + Comments code: HH:MM:SS.ss S.ss -S : 23:37:30 -D : -R : -E : 23:40:30 5.TELESCOPE: Type: Schmidt Cassegrain Aperture: 230mm Focal lenght: 700 (focal reducer f:6,3 and f:5) Magnification: - Filters: no Mount: equatorial Motor drive: yes 6. TIMING & RECORDING Sensor/Camera: Videocamera WAT 910HX/RC, CCIR, 1/2" EXwiew HAD CCD II Videocamera settings: Shutter mode=8x , Gain=39/41 , Gamma=0.7 Device of recording: Personal computer Virtualdub software, saved on Harddisk Mode of recording: Integration time=0.160s., CCIR, Time-inserter device: IOTA VTI 7. OBSERVING CONDITIONS Atmospheric transparency: poor Wind:(+) Star image stability: poor Minor Planet Visible: no 8. ADDITIONAL COMMENTS Very difficult: star wery loow, fog, moon