A 3.5 second occultation was recorded by Dave Herald, using video OSD technique.

View the updated prediction.

Observers:
  1    D Herald,Murrumbateman, NSW
  2(P) Prediction 4 Feb

    

Discussion:

The circle above is plotted at the expected 124 km diameter of Thia. With only one chord it is not possible to determine whether Dave was north or south of the central line of the event.

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

Observational Data:

Observation details for MP (405) Thia
By Star              UCA 2U21624032
On 2011-04-05  at 19:13:41.0

_______________________________

Observer   Dave Herald
Location   Murrumbateman, NSW
Longitude  +148:59
Latitude   -34:57
Altitude   594 m
Datum      WGS84
Telescope SCT including Cass and Mak
Aperture   35 cm
Seeing     Steady Clear
Camera Type
Camera Delay
Timing     GPS - time inserted Video with frame analysis
Disappearance  19:13:37.04
Reappearance   19:13:40.56
Comments:   Report prepopulated by IOTA Reporting Add-in for OW ver.1.5