+--------------------------------+ +--------------------------------+ ASTERIODAL OCCULTATION - REPORT FORM +--------------------------------+ +--------------------------------+ EAON & IOTA-ES EUROPEAN ASTEROIDAL OCCULTATION NETWORK INTERNATIONAL OCCULTATION TIMING ASSOCIATION EUROPEAN SECTION +--------------------------------+ +--------------------------------+ 1. DATE: August 20,2015 STAR: 1 UT 571-046124 ASTEROID: 409-Aspasia 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: POSITIVE 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: Yes (Tables Gerhard Dangl) Event Time (UTC) Accuracy + Comments code: HH:MM:SS.ss S.ss -S : 03:09:38 -D : 03:11:12.424 +/- 0.330 -R : 03:11:18.824 +/- 0.330 -E : 03:12:57 5.TELESCOPE: Type: Schmidt Cassegrain Aperture: 230mm Focal lenght: 700 (focal reducer f:6,3and f:5) Magnification: - Filters: no Mount: equatorial Motor drive: yes 6. TIMING & RECORDING Sensor/Camera: Videocamera WAT-120N+, CCIR, 1/2" Sony CCD-Sensor ICX419ALL Videocamera settings: Shutter mode=SLOW-5 , Gain=max. , Gamma=off Device of recording: Personal computer Virtualdub software, saved on Harddisk Mode of recording: Integration time=0.640s., CCIR, Time-inserter device: IOTA VTI 7. OBSERVING CONDITIONS Atmospheric transparency: good Wind: (+) Star image stability: good Minor Planet Visible: yes 8. ADDITIONAL COMMENTS