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OCCULTATION OF TYC 6856-01228-1 BY 410 Chloris
2010 September 30


A 5.08 second occultation was recorded by Steve Kerr, using Video OSD technique.

View the updated prediction.

Observers:
  1    S Kerr,Glenlee, Queensland,AU
  2(P) Prediction  19 Aug

    

Chloris occultation - 2010 September 30

Discussion:

The circle above is plotted at the expected 123 km diameter of Chloris. With only one chord it is not possible to determine whether Steve was north or south of the central line of the event. However, assuming the updated prediction was approximately correct the longer than expected chord the chord of about 113 km would suggest that the chord might lie within about 25 km of the central portion of the asteroid.

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

Chloris occultation - 2010 September 30

Observational Data:

Observation details for MP (410) Chloris
By Star              TYC 6856-01228-1
On 2010-09-30  at 12:41:46.0

_______________________________

Observer   Stephen Kerr
Location   Glenlee, Queensland,AU
Longitude  +150:30
Latitude   -23:16
Altitude   50 m
Datum      WGS84
Telescope SCT including Cass and Mak
Aperture   30 cm
Seeing     Slight flickering Broken cloud
Camera Type   Integrating x2
Camera Delay  40ms
Timing     GPS - time inserted Video with frame analysis
Disappearance  12:41:49.38
Reappearance   12:41:54.46
Comments: Video camera integrating at 80 msec.
Cloud covered field 12:38:45 to 12:41:30.

    

Return to 2010 occultation results



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