ASTEROIDAL OCCULTATION - REPORT FORM

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

1 DATE (YYYY/MM/DD): 2020/02/25     STAR: UCAC4 366-059287     ASTEROID: Marion     N°: 506

2 OBSERVER: Name: Robert Schaefer, Andreas Kreutzer                EAON Abbr:
            E-mail: andreas.kreutzer@harpoint-observatory.com
            Address: Endresstrasse 41, 1230 Vienna

3 OBSERVING STATION: Nearest city: Harpoint, Austria
  Station:
  Longitude (DD MM SS.s): E 13 21 06 (WGS84)
  Latitude  (DD MM SS.s): N 47 54 33 (WGS84)
  Altitude (m): 700
  Single station


                         +----------------------------+
4 TIMING OF EVENTS:      |                            |
                         |  EVENT REPORTED: POSITIVE  |
                         |                            |
                         +----------------------------+
  
  Event code
  S: observation Start   I: Interruption start
  D: Disappearance       J: Interruption end
  R: Reappearance        B: Blink   F: Flash
  E: observation End     O: Other (specify)
  
  Abbreviations
  P.E.: Personal Equation = reaction time (for visual obs)
  Acc.: Accuracy (overall accuracy of the given time)
  
                                                  Comments
  Event   Time (UT)    P.E.   Acc.   
  Code   HH:MM:SS.ss   S.ss   S.ss
  
    S  - 00:13:44    -      -      :
       -             -      -      :
    D  - 00:15:09.42 -      - 0.2  :
    R  - 00:15:18.38 -      - 0.2  :
       -             -      -      :
    E  - 00:16:52    -      -      :
  
                          Duration : 8.97 +/- 0.3
                         Mid-event : 00:15:13.90


5 TELESCOPE: Type: Ritchey-Chrétien    Aperture: 500 mm    Magnification: f/8 prime focus
             Mount: fork      Motor drive: computer controlled

6 TIMING & RECORDING:
  Time source: Navilock NL-8022MP GPS with PPS
  Sensor: ZWO ASI 174MM camera, 0.2s integration time, 2x binning mode
  Recording: SharpCap 3.2 on Windows 10
  Time  insertion (specify): GPS+: computer time synchronized with GPS sensor; computer time delay to GPS clock monitored and logged during observation,
                             then correction applied to exposure times (285ms delay) 
  Event insertion (specify): ?

7 OBSERVING CONDITIONS:
  Atmospheric transparency: good     Wind: no    Temperature: -2 deg
  Star image stability: FWHM 3-5"    Minor planet visible: yes

8 ADDITIONAL COMMENTS:
19 km north-west (outside) of the shadow path but inside 1-sigma zone
Probability: 41,2%
Photometric analysis performed with Tangra3