Two positive observations were recorded by Dave Gault and Dave Herald, using video OSD technique.

Three clearly observed misses were recorded for this event.

View the updated prediction.

Observers:
    1    D Gault,La Perouse, NSW, Australia
  2    D Herald,Braidwood, NSW,AU
  3(M) J Broughton,Pottsville, NSW,AU
  4(M) D Herald,Kambah, ACT,AU
  5(M) J Broughton,Reedy Creek, QLD,AU
  6(P) Prediction 15 April

There were 4 other staions registered but they had various problems and no useful reports.
    

Discussion:

The elipse above is plotted at the the same area as a circle with expected 207 km diameter of Egeria. With two chords we can be confident that the central line of the event was very close to the predicted path and within about 2 seconds of predicted time.

The figures below shows the Tangra light curves of the occultation.

Dave Herald

Dave Gault

Observational Data:

Observation details for MP (13) Egeria
By Star              UCAC2 16053677
On 2010-05-13  at 18:29:18.0

_______________________________

Observer   Dave Herald
Location   Braidwood, NSW,AU
Longitude  +149:42
Latitude   -35:18
Altitude   619 m
Datum      WGS84
Telescope SCT including Cass and Mak
Aperture   20 cm
Seeing     Steady Clear
Timing     GPS - time inserted Video with frame analysis
Disappearance  18:29:09.29
Reappearance   18:29:11.21
Comments: 8-frame integration
Report prepopulated by IOTA Reporting Add-in for OW ver.1.4

_______________________________

Observer   Dave Gault
Location   La Perouse, NSW, Australia
Longitude  +151:14
Latitude   -33:58
Altitude   45 m
Datum      WGS84
Telescope SCT including Cass and Mak
Aperture   20 cm
Seeing     Slight flickering Clear
Timing     GPS - time inserted Video with frame analysis
Disappearance  18:28:43.56
Reappearance   18:29:04.76
Comments: Light curve plot and .csv file included with this report

_______________________________

Observer   Dave Herald
Location   Kambah, ACT,AU
Longitude  +149:03
Latitude   -35:23
Altitude   582 m
Datum      WGS84
Telescope SCT including Cass and Mak
Aperture   35 cm
Seeing     Steady Clear
Timing     GPS - time inserted Video with frame analysis

Missed

Comments:   Report prepopulated by IOTA Reporting Add-in for OW ver.1.4
_______________________________

Observer   John Broughton
Location   Pottsville, NSW,AU
Longitude  +153:33
Latitude   -28:24
Altitude   5 m
Datum      WGS84
Telescope Newtonian
Aperture   31 cm
Seeing     Steady Clear
Timing     GPS - time inserted Video with frame analysis

Missed

Comments:
_______________________________

Observer   John Broughton
Location   Reedy Creek, QLD,AU
Longitude  +153:23
Latitude   -28:06
Altitude   66 m
Datum      WGS84
Telescope Newtonian
Aperture   51 cm
Seeing     Steady Clear
Timing     other Drift scan

Missed

Comments: