A 13 second occultation was recorded by john Broughton, using video OSD technique.

View the updated prediction.

Observers:
  1    J Broughton,Reedy Creek, QLD,AU
  2(P) Prediction, 16 Sept
    

Discussion:

The circle above is plotted at the expected 87 km diameter of Ludmilla. With only one chord it is not possible to determine whether John was north or south of the central line of the event.

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

Observational Data:

Observation details for MP (675 ) Ludmilla
By Star              UCAC2 28103901
On 2009-09-24  at 13:19:44.0

_______________________________

Observer   J Broughton
Location   Reedy Creek, QLD, Australia
Longitude  +153:23:52.9
Latitude   -28:06:30.4
Altitude   66 m
Datum      WGS84
Telescope SCT
Aperture   25 cm
Seeing     Strong flickering Clear
Timing     GPS - time inserted Video with frame analysis
Disappearance  13:20:10.50
Reappearance   13:20:33.50
Comments: Watec 120N+ running at 8-frame integration.
This lengthy 13th-magnitude occultation was a difficult one to analyse.
I called it positive initially on the basis there was a noticeable drop in light
when running the tape on the VCR in 7x picture-search mode lasting 23 seconds.

Limovie reveals an intensity drop from 1900 to 1000 units. Due to the event
being 38 seconds late, the plot ends shortly after reappearance when the
drift-through target was approaching the edge of the frame. A plot from
after the target was shifted shows an intensity level of 1900 and supports the
conclusion that R did occur a few seconds before the shift. Noise levels
however make the exact position for reappearance somewhat debatable.