A 3.53 second occultation was recorded by Steve Kerr, using Video OSD technique.

View the updated prediction.

Observers:
  1    S Kerr,Rockhampton
  2(P) Prediction, 6 June

        

Discussion:

The circle above is plotted at the expected 79 km diameter of Megaira. With only one chord it is not possible to determine whether Steve 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 84 km would suggest that the chord might lie close to the central portion of the asteroid.

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

Observational Data:

Observation details for MP ( 464 ) Megaira
By Star              TYC 0054-00967-1
On 2012-07-26  at 19:31:49.0

_______________________________

Observer   S. Kerr
Location   Rockhampton
Longitude  +150:30
Latitude   -23:16
Altitude   50 m
Datum      WGS84
Telescope SCT including Cass and Mak
Aperture   30 cm
Seeing     Steady Clear
Camera Type  WAT120N        PAL/CCIR
Camera Delay 0.09
Timing     GPS - time inserted Video with frame analysis
Disappearance  19:31:46.64
Reappearance   19:31:50.17
Comments:   Report prepopulated by IOTA Reporting Add-in for OW ver.1.6