ASTEROIDAL OCCULTATION - REPORT FORM

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

 1 DATE: 20 May 2018                                   STAR: TYC 6168-00860-1

  ASTEROID: Himalia (Jupiter satellite)                No: JVI

 2 OBSERVER : 
  Name      : Roman Hirsch                         Abrr: 
  Address   : Astronomical Observatory Institute, Sloneczna 36, Poznan, Poland

 3 OBSERVING STATION: 
  Nearest city : Poznan
  Station      : Borowiec          IAU obs code: 187
  Latitude     : 52 16 36.8 N   
  Longitude    : 17 04 30.8 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: POSITIVE         |
  +----------------------------------------------+
  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)

  (Personal Equation substracted)                 Comments
  Event   Time (UT)    P.E.   Acc.   
  Code   HH MM SS.ss   S.ss   S.ss
  
    S  - 22 00 20    -      -      :

    D  - 22 18 03.00 - 0.00 - 1.00 :
    R  - 22 18 09.00 - 1.00 - 1.00 :

    E  - 22 29 44    -      -      :
  
                          Duration : 6.00 s +/- 1 s
                         Mid-event : 22 18 06.00

  Was your reaction time applied to the above timings? No (CCD imaging).

  
 5 TELESCOPE: 
  Type        : Newton  f/4.5                           Aperture   : 400  mm
  Focal length: 1800  mm                                FOV        : 12.0'x 8.0'
  Mount       : paralactic                              Motor drive: yes

 6 TIMING & RECORDING:
  Time source      : NTP server vega.cbk.poznan.pl
  Sensor           : SBIG ST7 CCD camera with KODAK KAF400 sensor
  Mode of recording: Image size: Half, no binning
  Shutter (SENS-UP): Mechanical, Exposure time: 2.0 s, Readout: 1.4 s
  Recording        : Personal Computer
  Recording        : CCDOps software
  Time insertion   : none

 7 OBSERVING CONDITIONS: 
  Atmospheric transparency          : good 
  Wind  (km/h)                      : -
  Temperature (deg C / humid.)      : 15 deg C
  Star image stability              : good 
  Minor planet visible              : yes
  Local conditions (degree)         : star height: 22, sun height: -17, 
  Local moon conditions (degree)    : moon height: 10

 8 ADDITIONAL COMMENTS:
  CCD observations with time recording precision of 1s. 
  Only 3 points recorded during the occultation. 
  Data reduction by Anna Marciniak