A 5 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

       

Discussion:

The DAMIT model above is plotted at the expected diameter of Thisbe. 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 ( 88 ) Thisbe
By Star              UCAC4 326-148229
On 2018-02-21  at 16:21:29.0

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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  16:21:22.65
Reappearance   16:21:27.85
Comments: Event reasonably certain.  Predicted light change 0.29 mag, ca 23%.
 Times as determined by AOTA.  Report prepopulated by IOTA Reporting Add-in for OW ver.1.9