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OCCULTATION OF HIP 90631 BY 40 Harmonia
20170601


A 12 second occultation was recorded by John Broughton using a Newtonian Telescope and Watec 120N+ camera.

A 13 second occultation was recorded by John Broughton using a Newtonian Telescope and Watec 120N+ camera.

1 miss was recorded for this event.

View the IOTA update.

Observers:
  1(M) J Broughton, Pimpama, Queensland, Australia         
  2    J Broughton, Reedy Creek, Queensland, Australia     
  3    J Broughton, Tyagarah, New South Wales, Australia        
  4(P) Prediction


       

Harmonia occultation__ 20170601

Discussion:

The DAMIT model above is plotted at the expected diameter of Harmonia. The model has been plotted to fit the observed chords. The path appears to have been close to the prediction.

The figure below shows the Tangra light curve of the occultation. Curves here

Observational Data:


Observation details for MP ( 40 ) Harmonia
By Star              HIP HIP90631
On 2017-06-01  at 14:56:11.0

_______________________________

Observer   John Broughton
Location   Pimpama, QLD, AU
Longitude  +153:20
Latitude   -27:48
Altitude   3 m
Datum      WGS84
Telescope Refractor
Aperture    8 cm
Seeing     Steady Clear 
Camera Type  LN-300-11673   PAL/CCIR      
Camera Delay 
Timing     GPS - other linking Video with frame analysis

Missed

Comments:     

_______________________________

Observer   John Broughton
Location   Reedy Creek, QLD, AU
Longitude  +153:23
Latitude   -28:06
Altitude   66 m
Datum      WGS84
Telescope Newtonian
Aperture   25 cm
Seeing     Steady Clear 
Camera Type  Watec 120N+    PAL/CCIR      
Camera Delay 
Timing     GPS - other linking Video with frame analysis
Disappearance  14:56:03.96
Reappearance   14:56:16.12
Comments:     

_______________________________

Observer   John Broughton
Location   Tyagarah, NSW, AU
Longitude  +153:32
Latitude   -28:34
Altitude   10 m
Datum      WGS84
Telescope Newtonian
Aperture   25 cm
Seeing     Steady Clear 
Camera Type  Watec 120N+    PAL/CCIR      
Camera Delay 
Timing     GPS - time inserted Video with frame analysis
Disappearance  14:56:02.79
Reappearance   14:56:15.71
Comments:     

        

Return to 2017 occultation results



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