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OCCULTATION OF UCAC2 36468538 BY 558 Carmen
2009 January 17


Positive observations were recorded by Dave Gault and Hristo Pavlov, both using video technique.

View the updated prediction.

Observers:
  1    H Pavlov,Marsfield, NSW,AU
  2    D Gault,Hawkesbury Heights, NSW,AU
  3(P) Prediction, 8 Jan 2009

    

Carmen occultation - 2009 January 17

Discussion:

The circle above is plotted at the expected 59 km diameter of Carmen. With two chords we have some confidence that Dave was close to the central line of the event. There is a rotational light curve at Geneva Observatory site that indicates an elliptical shape with ratio of about 1.2. The plot below shows how this could fit to the observations.

Carmen occultation - 2009 January 17

The figures below show the light curves from two cameras that Dave was using at the same site.

Carmen occultation - 2009 January 17

Observational Data:


Observation details for MP (558) Carmen
By Star              UCA 2U36468538
On 2009-01-17  at 16:35:30.0

_______________________________

Observer   Hristo Pavlov
Location   Marsfield
Longitude  +151:06:13.
Latitude   -33:46:16.
Altitude   110 m
Datum      WGS84
Telescope SCT including Cass and Mak
Aperture   20 cm
Seeing     Steady Clear
Timing     GPS - time inserted Video with frame analysis
Disappearance  16:35:37.23
Reappearance   16:35:41.71
Comments: Recorded using WAT-120N+ using 16 frame (0.32 sec) integration
corresponding to x5 level.
For more detail and  Hristo's light curves see this site.

_______________________________

Observer   Dave Gault
Location   Hawkesbury Heights
Longitude  +150:38:27.8
Latitude   -33:39:52.
Altitude   286 m
Datum      WGS84
Telescope Newtonian
Aperture   25 cm
Seeing     Slight flickering Clear
Timing     GPS - time inserted Video with frame analysis
Disappearance  16:35:39.70
Reappearance   16:35:44.80
Comments: The main telescope was the 10" Newtonian, but I had the 8" SCT setup
and running. The 8" was located aprox 10m from the 10".
The event was observed with both systems but the 10: had better S/N.
See light curves (attached above).


    

Return to 2009 occultation results



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