ASTEROIDAL OCCULTATION - REPORT FORM

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

1 DATE:                  2022 Dec 11, 18:52 (UTC)

  STAR:                  UCAC4 676-037147      mv: 13.9 mag
  ASTEROID:              (624) Hektor          mv: 14.6 mag  (diam. 225.0 km)
                         combined magnitude:   mv: 13.4 mag
                         delta-magnitude:      mv:  1.2 mag

2 OBSERVER:
  Name:                  Andreas SCHWEIZER
  E-mail:                aschweiz@mac.com
  Address:               Strumbergächerstr. 3A, 8907 Wettswil, Switzerland

3 OBSERVING STATION:
  Nearest city:          Zürich
  Station:               Andreas SCHWEIZER
  Latitude:              N47 20' 30.800" (WGS84)
  Longitude:             E08 28' 22.800" (WGS84)
  Altitude:              580 m (MSL)  (WGS84)

  Predicted observation: yes (Distance 3.3 km from C.L.)
                         Probability: 100.0 percent

  Single station:        yes

                         +----------------------------------+
4 TIMING OF EVENT:       |                                  |
                         |  OCCULTATION RECORDED: POSITIVE  |
                         |                                  |
                         +----------------------------------+
  Type of event:
   S = Start observation I = Interrupt-start   D = Disappearance
   B = Blink             F = Flash             E = End observation
   I = Interrupt-end     R = Reappearance
   M = Mid-event         P = Predicted time

  Event  Time (UTC)      Acc.         Comments
  Code   HH MM SS.sss    S.sss

   S     18 50 36.643    +/-  0.001 s  : Start observation (UTC)
   D     18 52 31.100    +/-  0.300 s  : Disappearance     (UTC)
   R     18 52 42.400    +/-  0.500 s  : Reappearance      (UTC)
   E     18 54 37.636    +/-  0.001 s  : End observation   (UTC)

   Duration:   11.300    +/-  0.600 s  : (predicted: max. 13.1 s)

   P     18 52 37.163    +/-  4.022 s  : Predicted time    (UTC)

5 TELESCOPE: 
  Type:                  Reflector 107mm
  Aperture:              107 mm
  Focal length:          600 mm
  Magnification:         focal
  Mount:                 SkyWatcher EQ6 R
  Motor drive:           equatorial

6 TIMING & RECORDING:
  Time source:           GPS
  Quality of signal:     Accuracy 3 m
  Camera/Sensor:         Digital Camera with integrated GPS-VTI (DVTI+CAM, serial #17)
                         Image Sensor Sony IMX430LLJ-C (1.1" 1624x1240 4.5um CIS)
                         Website of the project: https://groups.io/g/d-vti-cam/
  Settings:              812x620, Exposure time 500 ms, Gain +36 dB D, Binning 2x2, Format ADV 16-bit
  Time insertion:        Digital GNSS timestamp into image sensor data stream

7 OBSERVING CONDITIONS:
  Atmospheric transp.:   very good
  Moon:                  88 percent lit, distance 38 deg
  Wind:                  no
  Star image stability:  very good
  Altitude of star:      43 deg
  Azimut of star:        65 deg in Auriga

8 ADDITIONAL COMMENTS:
  Feed:                      Lucky Star Events
  Video recording software:  DVTI Cam Control v5.5.1-4
  Light measurement tool:    AOTA v4.2022.12.13
  Remarks:                   This report was updated on 15.12.2022 after review by Eric Frappa.

  Published by e-mail to planoccult@ls.vvs.be (Planoccult mailing list)