ASTEROIDAL OCCULTATION - REPORT FORM

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

1 DATE:                  2019 Jul 09, 21:38 (UTC)

  STAR:                  UCAC4 447-103445      mv: 12.9 mag
  ASTEROID:              (5434) Tomwhitney     mv: 17.4 mag  (diam. 17.226km)
                         combined magnitude:   mv: 12.9 mag
                         delta-magnitude:      mv:  4.5 mag

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

3 OBSERVING STATION: 
  Nearest city:          Buelach, Switzerland
  Station:               Observatory Buelach (MPC Observatory Code: 167)
                         http://www.sternwartebuelach.ch/
  Latitude:              N 47 31 10.4 (WGS84)
  Longitude:             E 08 34 14.3 (WGS84)
  Altitude:              550 m (MSL)  (WGS84)

  Predicted observation: yes (located 9 km south of predicted center line)
  
  Single station:        Andreas SCHWEIZER

                         +----------------------------------+
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     21 38 30.088    +/-  0.01 s   : Start observation (UTC)
   D     21 38 48.280    +/-  0.02 s   : Disappearance     (UTC)
   R     21 38 49.080    +/-  0.02 s   : Reappearance      (UTC)
   E     21 38 53.130    +/-  0.01 s   : End observation   (UTC)

   Duration:                  0.80 s   : (predicted: max. 1.9s)
   
   P     21 38 38        +/-  4.00 s   : Predicted time    (UTC)

        
5 TELESCOPE: 
  Type:                  Newton Reflector f/5
  Aperture:              500 mm
  Focal length:          2500 mm
  Magnification:         focal (resulting field of view: 6.6' in x-axis)
  Mount:                 equatorial
  Motor drive:           yes

6 TIMING & RECORDING:
  Time source:           GPS
  Quality of signal:     Accurancy 2m
  Camera/Sensor:         Digital Camera with integrated GPS-VTI (Prototype)
                         AR0130CSSM, Pixel size 3.75my, QE 77%
                         Website of the project: https://groups.io/g/d-vti-cam/
  Settings:              640x480, 2x Binning, Exposure time 50ms (20 fps), Gain 10, Output format SER 16-bit
  Time insertion:        within Camera, visual timestamp

7 OBSERVING CONDITIONS:
  Atmospheric transp.:   good
  Moon:                  yes (about half moon, 86 degrees away from occulted star)
  Wind:                  no
  Star image stability:  good
  Altitude of star:      35 degrees, SE
  Minor planet visible:  no

8 ADDITIONAL COMMENTS:    
  Feed:                      IBEROC
  Video recording software:  DvtiCamControl v4.3.2
  Light measurement tool:    Tangra v3.6.18
  Remarks:                   -
  
  
  Published by e-mail to planoccult@ls.vvs.be (Planoccult mailing list)