ASTEROIDAL OCCULTATION - REPORT FORM

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

 1 DATE: 25 December 2021                              STAR: TYC 2444-00910-1

  ASTEROID: Sundmania                                 No: 1424

 2 OBSERVER: 
  Name      : Maciej Borkowski                               
  Address   : 16-001 Ksiezyno, Poland

 3 OBSERVING STATION: 
  Nearest city : Bialystok
  Station      : Ksiezyno                   Acc.
  Latitude     : 53 4 33.7 N            -   0.1"
  Longitude    : 23 6 07.8 E            -   0.1"
  Altitude     : 145                    -   1m

  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  - 21:21:21.1
  E  - 21:22:35.5       

  Calculated mag drop:  

  Predicted max. duration (secs) : 5.2
  Predicted max. drop (mag)      : 0.7 (double star)
  Predicted mid-event (UT)       : 21:21:40
  Predicted error in time (secs) : 2

  Was your reaction time applied to the above timings? - not relevant
  
 5 TELESCOPE: 
  Type        : Newton f/6                            Aperture   : 200 mm
  Focal length: 1200 mm                               FOV        : 20'x 13'
  Mount       : azimuthal                             Motor drive: no

 6 TIMING & RECORDING:
  Time source      : smopiVTI (GPS time)  
  Sensor           : Runcam Eagle 2 Pro with 0,5 GSO focal reducer
  Mode of recording: 8 bit AVI, Gain: 7/9
  Shutter          : 0.04 s (night shutter 1)
  Brightness       : 156
  Zoom             : 1
  Recording        : HP EliteBook 8470p (Windows 10 Intel Core i5 2.60GHz RAM 8 GB)
  Recording        : IOTA Capture 2.3

 7 OBSERVING CONDITIONS: 
  Atmospheric transparency          : good 
  Wind  (m/s)                       : 2
  Temperature (deg C / humid.)      : -6 / 87
  Star image stability              : good
  Minor planet visible              : no
  Local conditions (degree)         : star altitude: 63 SE, sun altitude: -58
  Local moon conditions (degree)    : 3 E

 8 ADDITIONAL COMMENTS:
  Observed star                           : TYC 2444-00910-1
  Star magnitude (mag)                    : 11.9 (close double of 11.8 and 11.9 mag components)
  Minor planet magnitude (mag)            : 14.7
  Feed                                    : IOTA, last updated November 30, 2021
  Rank                                    : 100
  Distance (km)                           : 1117 km from the central line
  Travel distance (km)                    : 1136 km S
  Shadow width (km)                       : 73
  Predicted probability OccultWatcher (%) : 0.0
  Predicted combined magnitude (mag)      : 11.1
  Faintest star on AVI (mag)              : 12.1
  Evaluation with Tangra 3.7