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OCCULTATION OF TYC 7835-01859-1 BY 445 Edna
2017 January 29


Dave Herald recorded a very brief 0.35 second occultation from Murrambateman, New South Wales while John Newman in Canberra recorded a longer 1.9 second event.

View the IOTA update.

Observers:
  1    D Herald,Murrumbateman, NSW, AU      
  2    J Newman,Canberra, ACT, AU           
  3(P) Prediction                           

    

       

Edna occultation__ 2017 January 29

Discussion:

While Dave and John's observed chords are quite close together, it is quite clear that the actual centreline of the event was to their south. The fit is improved if the outline of (445) Edna is assumed to be slightly elliptical as shown above.

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

Edna  occultation__ 2017 January 29

Observational Data:

Observation details for MP ( 445 ) Edna
By Star              TYC 7835-01859-1 
On 2017-01-29  at 16:32:10.0

_______________________________

Observer   Dave Herald
Location   Murrumbateman
Longitude  +148:59
Latitude   -34:57
Altitude   594 m
Datum      WGS84
Telescope SCT including Cass and Mak
Aperture   40 cm
Seeing     Steady Clear 
Camera Type  Watec 910BD    PAL/CCIR      
Camera Delay 
Timing     GPS - time inserted Video, photo or photoelectric
Disappearance  16:32:08.63
Reappearance   16:32:08.98
Comments: A very definite but short occn  Report prepopulated by IOTA Reporting Add-in for OW ver.1.8

_______________________________

Observer   John Newman
Location   Canberra, ACT, AU
Longitude  +149:02
Latitude   -35:11
Altitude   657 m
Datum      WGS84
Telescope SCT including Cass and Mak
Aperture   40 cm
Seeing     Steady Clear 
Camera Type  Watec 910BD    PAL/CCIR      
Camera Delay 
Timing     GPS - time inserted Video with frame analysis
Disappearance  16:32:09.14
Reappearance   16:32:11.08
Comments:   Report prepopulated by IOTA Reporting Add-in for OW ver.1.8

        

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