A 25.6 second occultation was recorded by Brian Loader, using video-OSD technique.

View the TT14 prediction.

Observers:
  1    B Loader,Darfield, NZ
  2(M) D Herald,Kambah, ACT, AU
  3(P) Prediction from TT14 set June 2009

    

Discussion:

The circle above is plotted at the expected 101 km diameter of Andromache. With only one chord it is not possible to determine whether Brian was north or south of the central line of the event. However, assuming the updated prediction was approximately correct the longer than expected chord of about 105km would suggest that the chord might lie close to the central portion of the asteroid.

The figure below shows the Limovie light curve of the occultation plus a reference star.

Observational Data:

Observation details for MP (175) Andromache
By Star              UCAC2 21121157
On 2009-07-21  at 08:31:22.0

_______________________________

Observer   Brian Loader
Location   Darfield
Longitude  +172:06:24.4
Latitude   -43:28:52.9
Altitude   210 m
Datum      WGS84
Telescope SCT including Cass and Mak
Aperture   25 cm
Seeing     Slight flickering Clear
Timing     GPS - time inserted Video with frame analysis
Disappearance  08:23:10.80
Reappearance   08:23:36.40
Comments: Watec 120N cmaera at 16x integration.
_______________________________

Observer   Dave Herald
Location   Kambah, ACT
Longitude  +149:03:48.9
Latitude   -35:23:49.3
Altitude   582 m
Datum      WGS84
Telescope SCT including Cass and Mak
Aperture   35 cm
Seeing     Steady Clear
Timing     GPS - time inserted Video with frame analysis

Missed

Comments: