A 7.8 second occultation was recorded by Chris Wyatt, using visual observing technique.

View the updated prediction.

Observers:
  1    C Wyatt,Walcha, NSW, AU
  2    C Wyatt,Walcha, NSW, AU
  3(P) Prediction 8 July

    

Discussion:

The circle above is plotted at the expected 67 km diameter of Aida. With only one chord it is not possible to determine whether Chris was north or south of the central line of the event.
Chris reported a flash of about 0.9 seconds near the middle of the observation which shows as two events above. The most probable explanation for this would be a grazing occultation near the edge and the star showing briefly through a valley. This is supported by the reported slow dimming at the first D.
Three other observers registered for the event on Occult Watcher but were unable to observe.

Observational Data:

Observation details for MP (861) Aida
By Star              TYC 4671-00495-1
On 2009-07-24  at 18:59:00.0

_______________________________

Observer   Chris Wyatt
Location   Walcha, NSW, Australia
Longitude  +151:32:0.2
Latitude   -31:20:58.3
Altitude   1228 m
Datum      WGS84
Telescope SCT including Cass and Mak
Aperture   20 cm
Seeing     Steady Clear
Timing     Tape Recorder + time signal Visual, PE applied
Disappearance  18:59:28.24
Reappearance   18:59:36.04
Comments: The star DIMMED at 18:59:28.240 (PE Applied) and
DISAPPEARED at 18:59:28.527 (PE applied), I then observed
a FLASH, "Back" at 18:59:30.697 (PE  applied)
then "Gone" at 18:59:31.600 (PE applied),
with REAPPEARANCE at 18:59:36.035 (PE applied), the star did
not seem to reappear gradually, it was instantaneous.