ASTEROIDAL OCCULTATION - REPORT FORM

    +------------------------------+  +------------------------------+
    |            EAON              |  |            IOTA/ES           |
    |                              |  |   INTERNATIONAL OCCULTATION  |
    |     EUROPEAN  ASTEROIDAL     |  |      TIMING  ASSOCIATION     |
    |     OCCULTATION NETWORK      |  |       EUROPEAN SECTION       |
    +------------------------------+  +------------------------------+

1 DATE: 31 March 2019                   STAR: TYC 4802-01414-1  (12.1 mag)
  ASTEROID: Ingeborg                No: 391

2 OBSERVER: Name: Marek Zawilski            Abbr:
            91-473 Lodz, Poland

3 OBSERVING STATION: Nearest city: Lodz
  Station: Aleksandrow Lodzki
  Latitude:  51d 49' 44" N
  Longitude: 19d 18' 43" E
  Altitude:  150m MSL
  Datum (WGS84 preferred): WGS84

  Single, OR Double or Multiple station (Specify observer's name):
  SINGLE

                         +----------------------------------+
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  - 20:52:00    - N/A  - 1    :
    D  -             -      -      :
    R  -             -      -      :
    E  - 20:56:30    - N/A  - 1    :
  
                          Duration : 0 s
                         Mid-event :
               Predicted mid-event : 31 Mar; 20:54:36 UT  +/- 6 sec

  Was your reaction time applied to the above timings? N/A

5 TELESCOPE: Type: Cassegrain       Aperture: 203mm    Magnification: ---
             Mount: Equatorial     Motor drive: YES   Foc.length: 2032mm reduced to 1016mm

6 TIMING & RECORDING:
  Time source: Dimension4 using the time server of Astrogeodynamical Observatory Borowiec, PL, laptop-time synchronized better than 0.01s
  Sensor: ZWO ASI 120MM camera
  Recording: ASICAP v.1.5 software
  Time insertion (specify): as above, a direct screen display

7 OBSERVING CONDITIONS:
  Atmospheric transparency: very good   Wind: none              Temperature: 3 deg C
  Star image stability: perfect       Minor planet visible: no

8 ADDITIONAL COMMENTS:
  Integration time 100 ms, gamma=1.00
  No event noticed on screen during recording.
  Predicted 0.8 sec duration with 3.7 mag drop.
  Event probability at site : 19%
  Distance from center line : 3 km
  Local * conditions (Alt,Az): 15°, @247°