A 4.18 second occultation was recorded by John Broughton, using CCD Drift Scan technique.

View the updated prediction.

Observers:
  1    J Broughton,Reedy Creek, QLD,AU
  2(P) Prediction 18 March

    

Discussion:

The circle above is plotted at the expected 341 km diameter of Europa. With only one chord it is not possible to determine whether John was north or south of the central line of the event.

The figures below show the drift-scan image of the occultation together and the data as analysed by John's Scanalyser software.

Observational Data:

Observation details for MP (52) Europa
By Star              TYC 1343-02420-1
On 2010-05-09  at 08:03:54.0

_______________________________

Observer   John Broughton
Location   Reedy Creek, QLD,AU
Longitude  +153:23
Latitude   -28:06
Altitude   66 m
Datum      WGS84
Telescope SCT including Cass and Mak
Aperture   25 cm
Seeing     Steady Clear
Timing     other Drift scan
Disappearance  08:03:49.98
Reappearance   08:03:54.16
Comments: Unattended untimed drift-scan with a Pictor 416 CCD camera.
The shutter doesn't work properly and has been constrained in the open position.
The exposure duration was calculated from the vertical scale height between
trails and adjusted for the drift rate at that declination.
Event times were derived from the X position of a star in a manually timed
image taken at 10:45:32 after I returned from a clouded-out attempt
near Evans Head in NSW.