A 5.9 second occultation was recorded by Chris Chad, using video OSD technique.

View the TT14 prediction.

Observers:
  1    C Chad,Gunnedah, NSW,AU
  2(P) Prediction, TT14, 27 July

        

Discussion:

The circle above is plotted at the expected 53 km diameter of Christine. With only one chord it is not possible to determine whether Chris was north or south of the central line of the event. However, assuming the updated prediction was approximately correct the chord of about 54 km would suggest that the chord might lie close to the central portion of the asteroid. There is an ISAM 3D model for Chritine but with only one chord we cannot esitmate the actual chord position and hence scale of the ISAM model.

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

Observational Data:

Observation details for MP ( 628 ) Christine
By Star              UCAC2 22340353
On 2012-08-03  at 08:24:12.0

_______________________________

Observer   Chris Chad
Location   Gunnedah, NSW,AU
Longitude  +150:15
Latitude   -30:59
Altitude   315 m
Datum      WGS84
Telescope Newtonian
Aperture   25 cm
Seeing     Strong flickering Clear
Camera Type  Other integrating            NTSC/EIA
Camera Delay 0.117
Timing     GPS - time inserted Video with frame analysis
Disappearance  08:24:21.55
Reappearance   08:24:27.49
Comments: Truly appalling seeing. Mag drop less than predicted.
Occular used to make sense of the event.
Samsung SCB-2000 NTSC (modded).  Frame delay subtracted from times.