A 2.6 second occultation was recorded by Ashley Pennell, using video OSD technique.

Two clearly observed misses were recorded for this event.

View the updated prediction.

Observers:
  1(M) G McKay,Blenheim, New Zealand        
  2(M) B Loader,Darfield,NZ                 
  3    A,Pennell, BBO,Dunedin NZ            
  4(P) Prediction, June 22                  


        

Discussion:

The circle above is plotted at the expected 134 km diameter of Comacina. With only one chord and two nearby constraining misses we can be sure that Ashley was north of the central line of the event.

The figure below shows the Tangra light curve of the occultation.

{ The small drop may raise doubts if this is real, but the Rank was 90 and the path and time differences were both small so it seems highly probable that this is real. It would have needed at least one other positive to remove any doubt. JT}

Observational Data:

Observation details for MP ( 489 ) Comacina
By Star              UCAC2 30935793
On 2014-08-09  at 18:01:23.0

_______________________________

Observer   Graeme McKay
Location   Blenheim, New Zealand
Longitude  +173:57
Latitude   -41:32
Altitude   18 m
Datum      WGS84
Telescope SCT including Cass and Mak
Aperture   28 cm
Seeing     Slight flickering Clear
Camera Type  WAT120N+       PAL/CCIR
Camera Delay -0.19
Timing     GPS - time inserted Video with frame analysis

Missed

Comments: Slight haze and moonglow but clearly identified starfield  
Report prepopulated by IOTA Reporting Add-in for OW ver.1.8

_______________________________

Observer   B. Loader
Location   Darfield,NZ
Longitude  +172:06
Latitude   -43:28
Altitude   210 m
Datum      WGS84
Telescope SCT including Cass and Mak
Aperture   25 cm
Seeing     Slight flickering Clear
Camera Type  WAT120N+       AAV-PAL
Camera Delay -0.11
Timing     GPS - time inserted Video with frame analysis

Missed

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

_______________________________

Observer   Ash Pennell 
Location   Dunedin NZ
Longitude  +170:29
Latitude   -45:52
Altitude   136 m
Datum      WGS84
Telescope SCT including Cass and Mak
Aperture   35 cm
Seeing     Slight flickering Clear
Camera Type  WAT120N        PAL/CCIR
Camera Delay -0.11
Timing     GPS - time inserted Video with frame analysis
Disappearance  18:02:23.06
Reappearance   18:02:25.70
Comments: