COMET OCCULTATION - REPORT FORM

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

 1 DATE: 18 May 2022                              STAR: UCAC4 565-047912

  COMET: 100P/Hartley 1                                 

 2 OBSERVER: 
  Name      : Gabriel Murawski
  Address   : 16-500 Sejny, Poland

 3 OBSERVING STATION: 
  Nearest city : Sejny
  Station      : MGAB Observatory
  Latitude     : 54 06 19 N
  Longitude    : 23 21 08 E
  Altitude     : 137

  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  - 21:34:47.08
  E  - 21:40:04.29          


  Predicted max. duration (secs) : 1.8
  Predicted max. drop (mag)      : 6.8
  Predicted mid-event (UT)       : 21:37:33
  Predicted error in time (secs) : 7

  Was your reaction time applied to the above timings? - not relevant
  
 5 TELESCOPE: 
  Type        : Newton f/4                            	Aperture   : 200 mm
  Focal length: 800 mm                               	FOV        : 6.0' x 6.0'
  Mount       : equatorial mount			drive      : yes

 6 TIMING & RECORDING:
  Time source      : NTP (time.windows.com)
  Sensor           : ZWO ASI1600MM-c Pro
  Mode of recording: 8 bit AVI, Gain: 600
  Shutter          : 30 ms
  Brightness       : 10
  Gamma		   : 50
  Recording        : Laptop ASUS R541U (Windows 10 Intel Core i3-7100U CPU 2.40GHz RAM 8 GB)
  Recording        : SharpCap 3.0

 7 OBSERVING CONDITIONS: 
  Atmospheric transparency          : good
  Minor planet visible              : no
  Local conditions (degree)         : star altitude: 38 W, sun altitude: -16
  Local moon conditions (degree)    : -4 SE

 8 ADDITIONAL COMMENTS:
  Observed star                           : UCAC4 565-047912
  Star magnitude (mag)                    : 11.9
  Feed                                    : Cometocc, last updated May 17, 2022
  Distance (km)                           : in the shadow path, 12.4 km from center line
  Travel distance (km)                    : 0 km
  Shadow width (km)                       : 42
  Predicted combined magnitude (mag)      : 11.9
  Faintest star on AVI (mag)              : 12.8