Three positive occultations were recorded by Dave Herald and Purcell, using video OSD technique.

View the updated prediction.

Observers:
  1    D Herald,Kambah, ACT, AU
  2    P Purcell,Kelly Rd,Michelago,NSW,AU
  3    D Herald,Michelago (sth), NSW,AU
  4(P) Prediction  9Mar

    

Discussion:

The circle above is plotted at the expected 104 km diameter of Hohensteina. Unfortunately, the long integration times result in material error bands for the times and prevent any useful ellipse fit or revised estimate of the diameter, so a circle fit has been used. It is however clear that the path was a little south of the predicted line.

Observational Data:

Observation details for MP (788) Hohensteina
By Star              TYC 5187-01774-1
On 2009-04-10  at 19:25:50.0

_______________________________

Observer   Dave Herald
Location   Kambah, ACT, AU
Longitude  +149:03:49.
Latitude   -35:23:49.3
Altitude   580 m
Datum      WGS84
Telescope SCT including Cass and Mak
Aperture   35 cm
Seeing     Steady Clear
Timing     GPS - other linking Video with frame analysis
Disappearance  19:25:48.96
Reappearance   19:25:51.44
Comments: 4-frame (0.16 sec) integration

_______________________________

Observer   Patrick Purcell
Location   Kelly Road between Williamsdale A.C.T & Michelago, NSW
Longitude  +149:09:9.9
Latitude   -35:36:34.5
Altitude   731 m
Datum      WGS84
Telescope SCT including Cass and Mak
Aperture   20 cm
Seeing     Slight flickering Star faint
Timing     GPS - other linking Video with frame analysis
Disappearance  19:25:48.55
Reappearance   19:25:52.39
Comments: Observing location selected was close to predicted central occultation path.
Faint star required integration of 16 frames to  ensure reasonably stable image.
This has reduced the accuracy of observation.

_______________________________

Observer   Dave Herald
Location   Michelago (sth), NSW
Longitude  +149:09:41.1
Latitude   -35:50:17.6
Altitude   731 m
Datum      WGS84
Telescope SCT including Cass and Mak
Aperture   20 cm
Seeing     Steady Clear
Timing     GPS - other linking Video with frame analysis
Disappearance  19:25:48.42
Reappearance   19:25:52.26
Comments: 8-frame  (0.32 sec) integration.