ASTEROIDAL OCCULTATION - REPORT FORM

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

1 DATE:                  2020 Sep 13, 19:24 (UTC)

  STAR:                  UCAC4 333-118357      mv: 13.3 mag
  ASTEROID:              (2882) Tedesco        mv: 16.6 mag  (diam. 22.0 km)
                         combined magnitude:   mv: 13.2 mag
                         delta-magnitude:      mv:  3.4 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' 10.400" (WGS84)
  Longitude:             E08 34' 14.300" (WGS84)
  Altitude:              550 m (MSL)  (WGS84)

  Predicted observation: yes (Distance 6.3 km from C.L.)
                         Probability: 16.2 percent

  Single station:        Sternwarte Bülach

                         +----------------------------------+
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     19 23 54.952    +/-  0.001 s  : Start observation (UTC)
   D     19 24 36.900    +/-  0.500 s  : Disappearance     (UTC)
   R     19 24 38.530    +/-  0.380 s  : Reappearance      (UTC)
   E     19 25 03.273    +/-  0.001 s  : End observation   (UTC)

   Duration:    1.630    +/-  0.880 s  : (predicted: max. 1.4 s)

   P     19 24 37.380    +/-  3.434 s  : Predicted time    (UTC)

5 TELESCOPE: 
  Type:                  Cassegrain
  Aperture:              850 mm
  Focal length:          7600 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 (V3, serial #12)
                         IMX174LLJ, Pixel size 5.86my, QE ~77% @ 530nm
                         Website of the project: https://groups.io/g/d-vti-cam/
  Settings:              640x400, Exposure time 500 ms, Gain +24 dB, Binning 3x3, Format ADV 16-bit
  Time insertion:        Digital GNSS timestamp into image sensor data stream

7 OBSERVING CONDITIONS:
  Atmospheric transp.:   fair
  Moon:                  below horizon
  Wind:                  no
  Star image stability:  fair
  Altitude of star:      15 deg
  Azimut of star:        205 deg in Ophiuchus

8 ADDITIONAL COMMENTS:
  Feed:                      IBEROC
  Video recording software:  DVTI Cam Control v4.10.2
  Light measurement tool:    Tangra v3.7, AOTA v4.9.5.3
  Remarks:                   Our 50cm Newton telescope was out of order, so I've recorded
                             this occultation with the 85cm Cassegrain telescope.                              

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