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OCCULTATION OF UCAC2_23157248 BY 447 Valentine
2011 August 09


A 5.2 second occultation was recorded by Dave Gault, using video OSD technique.

One clearly observed miss was recorded for this event.

View the TT14 prediction.

Observers:
  1    D Gault,Hawkesbury Heights,NSW,AU
  2(M) H Pavlov,St Clair, NSW, Australia
  3(P) Prediction, TT14 July 29

    

Valentine occultation - 2011 August 09

Discussion:

The circle above is plotted at the expected 79 km diameter of Valentine. With one chord and a nearby contstraining miss we can be sure that Dave was south of the central line of the event.

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

Valentine occultation - 2011 August 09

Observational Data:

Observation details for MP ( 447 ) Valentine
By Star              UCA 2U23157248
On 2011-08-09  at 09:50:17.0

_______________________________

Observer   Dave Gault
Location   Hawkesbury Heights,NSW,AU
Longitude  +150:38
Latitude   -33:39
Altitude   280 m
Datum      WGS84
Telescope SCT including Cass and Mak
Aperture   30 cm
Seeing     Steady Clear
Camera Type  WAT120N        PAL/CCIR
Camera Delay 0.17
Timing     GPS - time inserted Video with frame analysis
Disappearance  09:50:17.50
Reappearance   09:50:22.30
Comments: High Gamma + Hi Gain
Light curve diagram, as well as .lc and .csv files included with this report.

_______________________________

Observer   Hristo Pavlov
Location   St Clair, NSW, Australia
Longitude  +150:46
Latitude   -33:48
Altitude   68 m
Datum      WGS84
Telescope SCT including Cass and Mak
Aperture   35 cm
Seeing     Steady Broken cloud
Camera Type  WAT120N        PAL/CCIR
Camera Delay 0.09
Timing     GPS - time inserted Video with frame analysis

Missed

Comments: Reviewed the video and a defenite miss
Report prepopulated by IOTA Reporting Add-in for OW ver.1.6

    

Return to 2011 occultation results



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