A 18 second occultation was recorded by Brian Loader, using an SCT Telescope and Watec 910BD camera.

View the IOTA update.

Observers:
  1    B Loader, Darfield, Canterbury, New Zealand
  2(P) Prediction- IOTA Feed                

         



       

Discussion:

The circle above is plotted at the expected diameter of Bamberga. With only one chord, it is not possible to tell if Brian was north or south of the centre line of the event. The model has been plotted centred on the observed chord.

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

Loader:

Observational Data:

Observation details for MP ( 324 ) Bamberga
By Star              UCAC2 15824793
On 2017-07-10  at 13:30:30.0

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Observer   B. Loader
Location   Darfield
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  Watec 910BD    AAV-PAL       
Camera Delay 
Timing     GPS - time inserted Video with frame analysis
Disappearance  13:30:24.00
Reappearance   13:30:41.60
Comments: Expected delta magnitude 0.09, ca 8%, making it difficult to detect, AOTA could not
handle.  Time by visual inspection of 4-binned, normalised light curve
Hence times uncertain, reappearance in particular could be up to ca 3.6 seconds earlier, see
un-normalised light curve. Report prepopulated by IOTA Reporting Add-in for OW ver.1.8