ASTEROIDAL OCCULTATION - REPORT FORM

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

1 DATE: 28 February 2022             STAR: TYC 1876-01408-1  (11.0 mag)
  ASTEROID: Hughdowns                   No: 71000

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

3 OBSERVING STATION: Nearest cities: Lodz 
  Station: Lodz, Pallotins church property
  Longitude:    19° 27' 27.8" E
  Latitude:     51° 48' 44.5" N
  Altitude:     218m 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  - 20:26:30      - N/A  1.0   
    D  -                                     star brightness fluctuations only
    R  -                                     
    E  - 20:28:00      - N/A  1.0    
 
                          Duration : none
                         Mid-event : none
               Predicted mid-event : 28 Feb;20:27:05 UT  +/- 5 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: Laptop time controlled by the GPS Shelyak TimeBox device (time error +0.000 s with 9 satellites).
  Sensor: ZWO ASI 120MM, shutter set for 50 ms, video time resolution 50 ms, image resolution 1024x768 px, gain 63.
  Recording: SHARPCAP v.4.0.8395.0 software.

7 OBSERVING CONDITIONS:
  Atmospheric transparency: good        Wind: none            Temperature: -1 deg C
  Star image stability: average         Minor planet visible: no

8 ADDITIONAL COMMENTS:
 
  The light curve analyze using Tangra software and a careful inspection of the screen replay showed no remarkable drop of the star brightness caused by the asteroid. 
  This was an observation organized at a quite dark site in the city exactly on the predicted central line and has been performed without troubles.
  

  Predicted max. 1.0 sec. duration with 7.5 mag. drop.
  Event probability at site : 13.3%
  Distance from center line : 0.0 km, inside the predicted path.
  Local * conditions (Alt,Az): 57°, @240° in Auriga.
  Moon (Alt, Az): below the horizon.