An occultation was timed using video by Dave Gault in NSW. No event was seen by John Broughton in QLD.

View the updated prediction.

Observers:
  1    D.Gault, Hawkesbury Hts, NSW, Australia (VIDEO)   
  2(M) J.Broughton, Reedy Crk, QLD, Australia (CCD)
M = Miss

Discussion:

The circle above is plotted at the expected 148km diameter of Nemausa.

Dave Gault at Hawkesbury Heights, NSW, timed a 29.463 sec occultation using video. This was not too far from the maximum expected duration of 36.6 seconds and indicates that the occultation path shifted of order one-half track width to the west. John Broughton's negative observation was not quite close enough to determine whether Dave's observation was of a chord across the eastern or western side of the asteroid.

Unfortunately no observations were made from Sydney or Wollongong, which the path would have crossed, and observers in Canberra were clouded out.

Observational Data:

Observer's Name                  : Dave Gault
Aperture (cm)                    : 25
Focal length (cm)                : 122
Type (e.g. SCT; Newtonian)       : EQ Newtonian
Magnification                    : N/A
Observing site name              : Dave's Skyshed
Longitude (DD MM SS ; East +ve)  : 150 38 27.8
Latitude (DD MM SS ; South -ve)  : -33 39 52.0
Height above Sealevel (metres)   : 286
Geodetic Datum (e.g.WGS84,NZ1949): WGS84 
Height Datum (if known)          : MSL
Sky Transparency (Delete two)    : Fair
Star Image Stability (Delete two): Fair
Other Conditions:  
     (Wind, Clouds, Lights, etc.): Moonlight
Time Source (e.g. WWVH, GPS)     : GPS-KIWI
Recording method (e.g. tape)     : Video
Could you see the Asteroid?      : Yes - during occultation
Approx. Limiting Magnitude       : 12
                                          | Estimated  |
                           Universal Time | Reaction   | Accuracy, Remarks
                              h  m  s     | Time (sec) | 
                             __:__:__._        _._       _________________
Started Observing          : 14:07
Star and Object Merged     : Not sighted
Disappearance At           : 14:11:10.647
Reappearance At            : 14:11:40.110
Stopped Observing          : 14:17
Occultation Duration       : 29.463 sec

Was your reaction time (also known as Personal Equation) subtracted from 
any of the above timings?  : N/A
If YES, state value        : 

ADDITIONAL COMMENTS: 
I was surprised that I could detect a mag. 11 star with a 95% moon only 25 degrees distant, 
let alone the 1 mag. drop but it was plain as day on the monitor and field by field analysis 
of the recording was definite. 


Observer's Name                  : John Broughton
Aperture (cm)                    : 50.1
Focal length (cm)                : 140
Type (e.g. SCT; Newtonian)       : Newtonian 
Magnification                    : CCD drift-scan at 4 pixels per second 
Observing site name              : Reedy Creek, Gold Coast
Longitude (East +ve)             : +153 23' 49"
Latitude (South -ve)             : -28 06' 36"
Height above Sealevel (metres)   : 66
Geodetic Datum (e.g.WDD84,NZ1949): AGD66
Sky Transparency (Delete two)    : Good
Star Image Stability (Delete two): Good
Other Conditions:                
     (Wind, Clouds, Lights, etc.): Full moon
Time Source (e.g. WWV, VNG)      : WWVH.
Recording method (e.g. tape)     : Drift-scan. Taped shutter and time signal.  
Could you see the Asteroid?      : Only combined light monitored.
Approx. Limiting Magnitude       : 13.5
                                          | Estimated  |
                           Universal Time | Reaction   | Accuracy, Remarks
                              h  m  s     | Time (sec) | 
                             __:__:__._        _._       _________________
Started Observing          : 14:07:43.9        n.a       0.2
Disappearance At           : none
Reappearance At            : none
Stopped Observing          : 14:11:35.6        n.a       0.2

ADDITIONAL COMMENTS: Definitely no occultation.

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