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OCCULTATION OF 2UCAC 34715681 BY 1051 Merope
2011 August 07


A 4.48 second occultation was recorded by Andrew Walker, using video OSD technique.

Two clearly observed misses were recorded for this event.

View the updated prediction.

Observers:
  1    A Walker,Tauranga / New Zealand
  2(M) D Watson,Thornton near Whakatane, NZ
  3(M) B Loader,Darfield,NZ
  4(P) Prediction, IOTA, July 29

    

Merope occultation - 2011 August 07

Discussion:

The circle above is plotted at the expected 67 km diameter of Merope. With only one chord it is not possible to determine whether Andrew was north or south of the central line of the event.

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

Merope occultation - 2011 August 07

Observational Data:

Observation details for MP ( 1051 ) Merope
By Star              UCAC2 34715681
On 2011-08-07  at 09:26:04.0

_______________________________

Observer   B. Loader
Location   Darfield,NZ
Longitude  +172:06
Latitude   -43:28
Altitude   210 m
Datum      WGS84
Telescope SCT including Cass and Mak
Aperture   25 cm
Seeing     Steady Clear
Camera Type  WAT120N        PAL/CCIR
Camera Delay 0.33
Timing     GPS - time inserted Video with frame analysis

Missed

Comments:   Report prepopulated by IOTA Reporting Add-in for OW ver.1.6

_______________________________

Observer   Andrew Walker
Location   Tauranga / New Zealand
Longitude  +176:09
Latitude   -37:42
Altitude   11 m
Datum      WGS84
Telescope Newtonian
Aperture   30 cm
Seeing     Strong flickering Clear
Camera Type
Camera Delay
Timing     GPS - time inserted Video, photo or photoelectric
Disappearance  09:25:16.13
Reappearance   09:25:20.61
Comments: Magnification unknown, 12 inch f5 using the WATEC 120N camera.

_______________________________

Observer   Diana Watson
Location   Thornton near Whakatane, NZ
Longitude  +176:51
Latitude   -37:55
Altitude   3 m
Datum      Other
Telescope SCT including Cass and Mak
Aperture  200 cm
Seeing     Slight flickering Clear
Camera Type
Camera Delay
Timing     Tape Recorder + time signal Visual, no PE applied

Missed

Comments: Bright moonlight. Target star very faint, difficult to monitor,
but certain no drop in magnitude.

    

Return to 2011 occultation results



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