ASTEROIDAL OCCULTATION - REPORT FORM

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

1 DATE:                  2020 Oct 27, 19:10 (UTC)

  STAR:                  UCAC4 362-198187      mv: 12.8 mag
  ASTEROID:              (13622) McArthur      mv: 19.8 mag  (diam. 10.0 km)
                         combined magnitude:   mv: 12.8 mag
                         delta-magnitude:      mv:  7.0 mag

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

3 OBSERVING STATION:
  Nearest city:          Bülach
  Station:               Sternwarte Bülach
  Latitude:              N47 31' 10.402" (WGS84)
  Longitude:             E08 34' 14.300" (WGS84)
  Altitude:              550 m (MSL)  (WGS84)

  Predicted observation: yes (Distance 1.3 km from C.L.)
                         Probability: 7.1 percent

  Single station:        Andreas SCHWEIZER and Stefan MEISTER

                         +----------------------------------+
4 TIMING OF EVENT:       |                                  |
                         |  OCCULTATION RECORDED: NEGATIVE  |
                         |                                  |
                         +----------------------------------+
  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     19 08 37.934    +/-  0.001 s  : Start observation (UTC)
   D                     +/-        s  : Disappearance     (UTC)
   R                     +/-        s  : Reappearance      (UTC)
   E     19 11 39.466    +/-  0.001 s  : End observation   (UTC)

   Duration:   SS.sss    +/-        s  : (predicted: max. 1.1 s)

   P     19 10 07.875    +/-  6.268 s  : Predicted time    (UTC)

5 TELESCOPE: 
  Type:                  Newton
  Aperture:              500 mm
  Focal length:          2500 mm
  Mount:                 Equatorial
  Motor drive:           Yes

6 TIMING & RECORDING:
  Time source:           GPS
  Quality of signal:     Accuracy 7m
  Camera/Sensor:         Digital Camera with integrated GPS-VTI (Prototype V3, serial #12)
                         IMX174LLJ, Pixel size 5.86my, QE ~77% @ 530nm
                         Website of the project: https://groups.io/g/d-vti-cam/
  Settings:              960x600, Exposure time 50 ms, Gain +16 dB  , Binning 2x2, Format ADV 16-bit
  Time insertion:        Digital GNSS timestamp into image sensor data stream

7 OBSERVING CONDITIONS:
  Atmospheric transp.:   good
  Moon:                  87 percent lit, distance 38 deg
  Wind:                  some
  Star image stability:  good
  Altitude of star:      24 deg
  Azimut of star:        194 deg in Capricornus

8 ADDITIONAL COMMENTS:
  Feed:                      Planned Observations
  Video recording software:  DVTI Cam Control v4.10.3
  Light measurement tool:    PyMovie + PyOTE
  Remarks:

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