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                 ASTERIODAL OCCULTATION - REPORT FORM

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                       EAON & IOTA-ES

               EUROPEAN ASTEROIDAL OCCULTATION NETWORK

    INTERNATIONAL OCCULTATION TIMING ASSOCIATION EUROPEAN SECTION

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1. DATE: August 10, 2013 
    STAR: 4UC 355-195889
    ASTEROID: (268) Adorea

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 : 21:19:00 UT 
     -D : 21:20:52.53 +/- 0.33 s. 
     -R : 21:20:54.75 +/- 0.66 s.
     -E : 21:23:00 UT 


5.TELESCOPE:
    Type: Schmidt Cassegrain
    Aperture: 230mm
    Focal lenght: 1400 (focal reducer f:6,3)
    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=low
    Device of recording: Personal computer
    Virtualdub software, saved on Harddisk
    Mode of recording: Integration time=0.640 s., CCIR, 
    Time-inserter device: IOTA VTI


7. OBSERVING CONDITIONS
    Atmospheric transparency: good 
    Wind: strong
    Star image stability: wery poor
    Minor Planet Visible: yes

8. ADDITIONAL COMMENTS
    Lightcurve made with Limovie 0.9.29b and gamma Reverse Correction factor of 0.45.
    Report D and R time corrected by -0.350 s. (integration camera slow 5).-
    The overall evaluation of the record movie shows that the star+asteroid signal is low.
    I evaluate the uncertainty of the R time higher than that of D Time.
    I enclose a lihgtcurve.