ASTEROIDAL OCCULTATION - REPORT FORM

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

 1 DATE: 17 January 2022                        STAR: G005507.3-021104

  ASTEROID: Bernardina                            No: 629

 2 OBSERVER : 
  Name      : Anna Marciniak 		          Abrr:
  Address   : Astronomical Observatory Institute, A. Mickiewicz University, Sloneczna 36, Poznan, Poland

 3 OBSERVING STATION: 
  Nearest city : Poznan
  Station      : Chalin          IAU obs code: -
  Latitude     : 52 36 14.0 N   
  Longitude    : 16 02 33.4 E   
  Altitude     : 123 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:
 "S"tart observation   "I"nterrupt-start   "D"isappearance   "B"link   "F"lash
 "E"nd observation     "J"nterrupt-end     "R"eappearance    "O"ther (specify)

  Event   Time (UT)    P.E.   Acc.   
  Code   HH MM SS.ss   S.ss   S.ss
  
  S  - 19:22:41.61   -    -  0.01
  D  -    -    -  
  R  -    -    -  
  E  - 19:24:53.38   -    -  0.01 
 
                         Duration :    -
                         Mid-event :   -
  
  Was your reaction time applied to the above timings? - not applicable.
  
 5 TELESCOPE: 
  Type        : Cassegrain f/0.19                      Aperture   : 350 mm
  Focal length: 1855 mm                                FOV        : 19'x 21'
  Mount       : altazimuth                             Motor drive: yes

 6 TIMING & RECORDING:
  Time source      : GPS++
  Sensor           : Andor Zyla 5.5 camera with sCMOS sensor
  Mode of recording: Binning 4x4, Image size: Full
  Shutter (SENS-UP): Electronic, Global
  Recording        : Personal Computer
  Recording        : Own software
  Time insertion   : Start exposure times inserted into FITS headers with own software

 7 OBSERVING CONDITIONS: 
  Atmospheric transparency          : good 
  Wind  (km/h)                      : 20
  Temperature (deg C / humid.)      : 0 deg C / humidity - no data
  Star image stability              : good
  Minor planet visible              : no
  Local conditions (degree)         : star height: 21, Sun height: -37, 
  Local moon conditions (degree)    : Moon height: 41

 8 ADDITIONAL COMMENTS:
  Star magnitude                          : 12.4
  Minor planet magnitude                  : 16.0
  Feed                                    : CentralEurope
  Distance (km)                           : 19.1 km
  Faintest star on CCD (mag)              : 14.2
  Exposure time				  : 0.2 s 
  Readout time				  : 0.02 s

  Predicted max. duration (secs) :  1.5 
  Predicted max. drop (mag)      :  3.6
  Predicted mid-event (UT)       : 19:23:44
  Predicted error in time (secs) :  2
  Probability			 : 36 %

 Nearby star 0.8'' from target, increasing the combined brightness to 11.8 mag, and decreasing expected mag drop to 0.9 mag.
 Still no occultation of this depth.

 Data reductions by Julia Perla