A 10 second occultation was recorded by John Broughton, using a Newtonian Telescope and LN-300-11673 camera.

A 5 second occultation was recorded by John Broughton, using a Newtonian Telescope and LN-300-11673 camera.

2 misses were recorded for this event.

View the IOTA update.

Observers:
  1    J Broughton, Broadwater, New South Wales, Australia
  2    J Broughton, Tabbimoble, New South Wales, Australia
  3(M) J Broughton, Cowper, New South Wales, Australia
  4(M) J Broughton, Grafton, New South Wales, Australia
  5(P) Prediction- IOTA Feed                

         



       

Discussion:

The ellipse above is plotted at the expected diameters of Marion. The ellipse has been plotted to fit the observed chords. The event appears to have been north of the predicted path.

Observational Data:

Observation details for MP ( 506 ) Marion
By Star              TYC 5233-00791-1 
On 2017-07-20  at 17:37:38.0

_______________________________

Observer   John Broughton
Location   Broadwater, NSW, AU
Longitude  +153:25
Latitude   -29:02
Altitude   11 m
Datum      WGS84
Telescope Newtonian
Aperture   25 cm
Seeing     Steady Clear 
Camera Type  LN-300-11673   PAL/CCIR      
Camera Delay 
Timing     GPS - other linking Video with frame analysis
Disappearance  17:37:39.79
Reappearance   17:37:50.35
Comments:     

_______________________________

Observer   John Broughton
Location   Tabbimoble, NSW, AU
Longitude  +153:14
Latitude   -29:15
Altitude   31 m
Datum      WGS84
Telescope Newtonian
Aperture   25 cm
Seeing     Steady Clear 
Camera Type  LN-300-11673   PAL/CCIR      
Camera Delay 
Timing     GPS - other linking Video with frame analysis
Disappearance  17:37:41.90
Reappearance   17:37:45.74
Comments:     

_______________________________

Observer   John Broughton
Location   Cowper, NSW, AU
Longitude  +153:06
Latitude   -29:33
Altitude   5 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

Missed

Comments:     

_______________________________

Observer   John Broughton
Location   Grafton, NSW, AU
Longitude  +152:57
Latitude   -29:43
Altitude   16 m
Datum      WGS84
Telescope Newtonian
Aperture   32 cm
Seeing     Steady Clear 
Camera Type  Watec 120N+    PAL/CCIR      
Camera Delay 
Timing     GPS - other linking Video with frame analysis

Missed

Comments: