A 19.76 second occultation was recorded by John Broughton, using Video OSD technique.

View the updated prediction.

Observers:
  1(M) J Bradshaw,Samford,QLD,AU
  2    D Lowe,Gatton
  3    J Broughton,Ballina, NSW,AU
  4(P) Prediction, 16 Sept
  

Discussion:

The ellipse above is plotted at same are as the expected 148 km diameter of Emma. With only two chords and a miss to the north we can be fairly confident that John was north of the central line of the event.

The shape is fairly close the the DAMIT database shape for Emma.

Observational Data:

Observation details for MP (283 ) Emma
By Star              TYC 1775-01459-1
On 2009-09-22  at 16:12:48.0
_______________________________

Observer   J Broughton
Location   Ballina, NSW,, Australia
Longitude  +153:33:46.9
Latitude   -28:50:26.4
Altitude   3 m
Datum      WGS84
Telescope SCT
Aperture   25 cm
Seeing     Slight flickering Clear
Timing     GPS - time inserted Video with frame analysis
Disappearance  16:12:43.83
Reappearance   16:13:03.59
Comments: :Watec 120N+ at 2X integration.
_______________________________

Observer   Jonathan Bradshaw
Location   Samford,QLD,AU
Longitude  +152:52:22.7
Latitude   -27:21:22.8
Altitude   92 m
Datum      WGS84
Telescope Dobsonian
Aperture   50 cm
Seeing     Steady Clear
Timing     GPS - time inserted Video with frame analysis

Missed

Comments: Outstandingly annoying result!
Report prepopulated by OccultWatcher's Reporting Addin ver.1.1
_______________________________

Observer   Dennis Lowe
Location   Gatton
Longitude  +152:21:28.4
Latitude   -27:30:55.1
Altitude   95 m
Datum      WGS84
Telescope Refractor
Aperture   10 cm
Seeing     Strong flickering
Timing     GPS - time inserted Video with frame analysis
Disappearance  16:13:18.12
Reappearance   16:13:31.60
Comments: Some smoke haze.  Telescope fitted with Gstar-Ex video camera
and focal reducer.  Integrating at X12.  .24 seconds deducted from time
to compensate for delay.