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OCCULTATION OF UCAC4_417-145816 BY 893 Leopoldina
2015 May 16

A 3.36 second occultation was recorded by Dean Hooper, using video OSD technique.

No clearly observed misses were recorded for this event.

View the TT14 prediction.

[  1    D Hooper,Melbourne, Australia        
  2(P) Prediction, TT14,  Apr 26            


Leopoldina occultation__ 2015 May 16


With only one chord it is not possible to determine whether Dean was north or south of the central line of the event. However, assuming the updated prediction was approximately correct the chord of about 60km would suggest that the chord might lie close to the central portion of the asteroid, expected diameter 75km.

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

Leopoldina occultation__ 2015 May 16

Observational Data:

Observation details for MP ( 893 ) Leopoldina
By Star              UCAC4 417-145816
On 2015-05-16  at 16:34:48.0


Observer   Dean Hooper
Location   Melbourne, Australia
Longitude  +145:00
Latitude   -37:56
Altitude   28 m
Datum      WGS84
Telescope SCT including Cass and Mak
Aperture   20 cm
Seeing     Steady Clear 
Camera Type  WAT910HX       PAL/CCIR      
Camera Delay 
Timing     GPS - time inserted Video with frame analysis
Disappearance  16:34:25.70
Reappearance   16:34:29.06
Comments: Gamma (Gain) set at 39dB  Times analysed by AOTA. By JT 


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