ASTEROIDAL OCCULTATION - REPORT FORM

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

1 DATE: 03 September 2021             STAR: HIP 100805  (7.4 mag)
  ASTEROID: Morellet                     No: 11950

2 OBSERVER: Name: Marek Zawilski            Abbr:
            E-mail: marek.zawilski@p.lodz.pl
            Address: ul.Julianowska 5/7 m.322, 91-473 Lodz, Poland

3 OBSERVING STATION: Nearest cities: Wielun
  Station: Olewin
  Latitude:  51d 12' 53.6" N
  Longitude: 18d 39' 00.8" E
  Altitude:  192 m 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  - 20:21:52    - N/A  - 1    :
    D  -   -                       :  
    R  -   -                       :   
    E  - 20:23:35    - N/A  - 1    :
  
                          Duration : no occultation 
                         Mid-event : 
               Predicted mid-event : 03 Sep ; 20:22:51 UT  +/- 6 sec

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

5 TELESCOPE: Type: Refractor       Aperture: 80 mm    Magnification: ---
             Mount: Azimutal     Motor drive: NO   Foc.length: 400 mm reduced to 200 mm

6 TIMING & RECORDING:
  Time source: Laptop time controlled by the GPS TimeBox device (time error 0.000 s).
  Sensor: ZWO ASI 120MM, shutter set for 50 ms, image resolution 1024x768 px, gain 70.
  Recording: SHARPCAP v.3.2.6383.0 software

7 OBSERVING CONDITIONS:
  Atmospheric transparency: very good   Wind: none            Temperature: +15 deg C
  Star image stability: good      Minor planet visible: no

8 ADDITIONAL COMMENTS:
 A remote station. The light curve analyze using Tangra software and a careful inspection of the screen replay showed no remarkable rapid drop of the star brightness caused by the asteroid. The star image was stable enough both for the occulted and a guiding star; so there was no occultation longer than 0.05s and the observation has been classified as negative.

  Predicted max 1.2 sec duration with 11.8 mag drop.
  Event probability at site : 12.4 %
  Distance from center line : 2.5 km in 323° direction, inside the predicted path near the centerline
  Local * conditions (Alt,Az): 20°, @179° in Capricornus
  Moon below the horizon.