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OCCULTATION OF TYC 0596-00777-1 BY 10 Hygiea
2007 October 02


A 16.15 second occultation was recorded by Stephen Russell, using video technique.

View the updated prediction.

Observers:
  1    S Russell,Colinton, NSW, AU          
  2(M) D Herald,Kambah, ACT, AU             
  3(M) H Pavlov,Marsfield, NSW, AU          
  4(P) Prediction 3 Sept                    

Hygiea occultation - 2007 October 02

Discussion:

The circle above is plotted at the expected 407 km diameter of Hygiea. With the nearby negative observations by Dave Herald and Hristo Pavlov we can be confident that Stephen was north of the central line of the event and that the updated prediction was very close to the actual path of the asteroid.

The figures below show the Limovie graphs of the occultation as observed by Stephen and Dave

S Russell Hygiea occultation - 2007 October 02

The expected magnitude drop of 0.21 means the signal to noise ratio is low but signal is clear.

D Herald Hygiea occultation - 2007 October 02

Observational Data:

Observation details for MP (10) Hygiea
By Star              TYC 0596-00777-1 
On 2007-10-02  at 13:19:46.0
_______________________________

Observer   Stephen Russell
Location   Colinton, NSW, AU
Longitude  +149:09:6.6
Latitude   -35:51:58.9
Altitude   721 m
Datum      WGS84
Telelscope Newtonian
Apperture   20 cm
Seeing     Slight flickering Clear
Timing     GPS - time inserted Video with frame analysis
Disappearance  13:19:39.40
Reappearance   13:19:55.55
Comments: Altitude datum = MSL. WGS84 adjustment 11.2m 
_______________________________

Observer   Dave Herald
Location   Kambah, ACT, AU
Longitude  +149:03:49.
Latitude   -35:23:49.3
Altitude   540 m
Datum      WGS84
Telelscope SCT including Cass and Mak
Apperture   35 cm
Seeing     Steady Clear
Timing     GPS - other linking Video with frame analysis

Missed

Comments:  

_______________________________

Observer   Hristo Pavlov
Location   Marsfield, NSW, AU
Longitude  +151:06:10.9
Latitude   -33:46:13.9
Altitude   108 m
Datum      WGS84
Telelscope SCT including Cass and Mak
Apperture   20 cm
Seeing     Steady Clear
Timing     GPS - time inserted Video with frame analysis

Missed

Comments:  


Return to 2007 occultation results



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