ASTEROIDAL OCCULTATION - REPORT FORM
					REPORTED to SODIS
    +------------------------------+  +------------------------------+
    |            EAON              |  |            IOTA/ES           |
    |                              |  |   INTERNATIONAL OCCULTATION  |
    |     EUROPEAN  ASTEROIDAL     |  |      TIMING  ASSOCIATION     |
    |     OCCULTATION NETWORK      |  |       EUROPEAN SECTION       |
    +------------------------------+  +------------------------------+

1 DATE:   26 July 2024                 STAR: UCAC4 355_201019  

  ASTEROID: 2000 DY107                 N?: 67228


2 OBSERVER: Name:   Tim HAYMES 
		 

3 OBSERVING STATION: Nearest city:  OXFORD, UK
  Station  : Southside Observatory Y98
  Latitude : N 51 55 40"
  Longitude: W 01 18 47"
  Altitude : 122m
  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
  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  -  01 37 30   -      -      :
       -             -      -      :
    D  -  01 38 31.1      +/- 0.3
    R  -  01 38 32.5      +/- 0.4
       -             -      -      :
    E  -  01 39 30   -      -      :
  
                          Duration : 
                         Mid-event : 


5 TELESCOPE: Type: C11  		Aperture: 280mm       Magnification: F/6
             Mount:EQ8 Pro      Motor drive: Yes

6 TIMING & RECORDING:
  Exposure    : 		0.35S
  Signal/noise:			3.3
  Time source:			GPS++
  Sensor:				QHY174-GPS (5.86x5.86u), Global Shutter
  Recording:	    		adv(2x2bin), SharpCap v4.1.11786, HP i5 SSD W10.
  Time  insertion (specify):	1 PPS (@ start of frame)
  Event insertion (specify):	Tangra analysis

7 OBSERVING CONDITIONS:         	
  Atmospheric transparency: Poor/Moonlit  		Wind:  0       Temperature: +12C
  Star image stability: slight flickeri         Minor planet visible?     :  No
           

8 ADDITIONAL COMMENTS: 
  I was forced to use a much longer exposure of 350ms DUE to the poor transparency and
  low elivation (telescope appeture partly obscured).  Not ideal for a short 1.3 sec event.
  Focus was also blurred. The report is "star faint". The recording is across 4 frames.
  Asteroid diameter 10Km.
 
  Plate scale    : 1.4 arcsec/pix (binned)

  Predicted Time : 26 Jul; 01:38:32 UT   +/- 0 sec
  Combined Mag   : 13.7
  Predicted drop : 3.8
  Max. Duration  : 1.3 sec
  OW Centre Dist.: 2 km

  Shadow Width   : 12 km
  Alt/Az         : 19° @174°
  Moon Alt       : 31°     
  Constellation  : Aquarius

  more CAMERA SETTINGS
  USB Traffic	 = 0 
  Gain		 : 410
  Offset	 	 : 100
  Gamma		 : 1
  CCD Temporature: -10 C