A Two positive chords were recorded , using Video OSD technique.

one clearly observed miss was recorded for this event.

View the updated prediction.

Observers:
  1    Tony Barry, Lachlan Davis, Rob Horvat, Linden Observatory , NSW,AU         
  2    D Gault,Kuriwa Observatory, NSW, AU  
  3(M) J Newman,Flynn, ACT, AU              
  4(P) Prediction, 24 April                 


        

Discussion:

The circle above is plotted at the expected 153 km diameter of Medea. With only 2 nearby chords and a miss we can be confident of the path of Medea and that it was close to the predicted line. The chords are too close to infer anything about the size or shape of Medea.

The figure below shows the Tangra light curve of the Barry et al occultation with the AOTA analysis of the times.

The figure below shows the Tangra light curve of the Gault occultation with the AOTA analysis of the times.

Observational Data:

Observation details for MP ( 212 ) Medea
By Star              TYC 0604-01157-1 
On 2015-06-05  at 19:04:21.0

_______________________________

Observer   Tony Barry, Lachlan Davis, Rob Horvat
Location   Linden Observatory
Longitude  +150:29
Latitude   -33:42
Altitude   595 m
Datum      WGS84
Telescope SCT including Cass and Mak
Aperture   25 cm
Seeing     Steady Clear 
Camera Type  Flea3-03S3 with ADVS         ADVS          
Camera Delay 
Timing     GPS - time inserted Video with frame analysis
Disappearance  19:04:20.23
Reappearance   19:04:23.73
Comments:   Report prepopulated by IOTA Reporting Add-in for OW ver.1.8

_______________________________

Observer   Dave Gault
Location   Kuriwa Observatory, NSW, AU
Longitude  +150:38
Latitude   -33:39
Altitude   286 m
Datum      WGS84
Telescope SCT including Cass and Mak
Aperture   30 cm
Seeing     Steady Clear 
Camera Type  Flea 3-03S3 with ADVS        ADVS          
Camera Delay 
Timing     GPS - time inserted Video with frame analysis
Disappearance  19:04:20.03
Reappearance   19:04:24.03
Comments: Light curve plot and .CSV file included with this report.   

_______________________________

Observer   John Newman
Location   Flynn, ACT, AU
Longitude  +149:02
Latitude   -35:11
Altitude   657 m
Datum      WGS84
Telescope SCT including Cass and Mak
Aperture   36 cm
Seeing     Steady Clear Bright near full moon,Heavy frost
Camera Type  Watec 120N+     4            
Camera Delay 
Timing     GPS - time inserted Video with frame analysis

Missed

Comments:   Report prepopulated by IOTA Reporting Add-in for OW ver.1.8