[IGSMAIL-6416] Re: GLONASS DV event with respect to R07/712

[Richard B. Langley]

Author: Richard Langley

The most recent repositioning event for GLONASS 712 (including the  
approximate size of the estimated delta-V) is confirmed by NORAD two- 
line element sets. See: http://gauss.gge.unb.ca/glonass_712_mean-motion.pdf

-- Richard Langley

On 21-Jun-11, at 9:39 AM, Stefan Schaer wrote:

> Author: Stefan Schaer
>
>
> NOTIFICATION:
>
> We observed for the first time a repositioning event for GLONASS,
> namely with respect to R07/712 on:
>
> 29-Apr-2011 11:42:56 GPST (mean epoch of event)
>
> The estimated components of the velocity change are given in our IGS
> analysis summary for GPS week 1633 (IGS Report 19725):
>
> http://igscb.jpl.nasa.gov/pipermail/igsreport/2011-May/019738.html
>
> Estimated DV components in orbital frame:
>   -0.5 mm/sec (radial)
>  -26.8 mm/sec (along track)
>   -0.5 mm/sec (out of plane)
>
> Remark: Although no observation data was available for R07/712 on
> 29-Apr-2011, the repositioning event could be detected based on
> forward-backward orbit extrapolation.
>
> The CODE AC Team
>
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