991013 report
First Inclinometry for 6 weeks - some changes (2" ampl.)
SUMMARY
CW Inclinometry was taken during the day 13 Oct 1999. There are
some changes or order 2" since the last run on
30 Aug .
Datasets HST start mean leg temperatures Humidity
start middle end %
( inc990830 cw 09:54 7.0 8.5 10.0 15 )
inc991013 cw 11:50 6.8 8.1 8.8 20
The differences between these clockwise models is shown below :
- Difference spikes at azimuths 33, 249, 280 and 300 are evident, and
the first and the latter two have been identified in the new data and
removed.
- After these corrections, the differences in the
(F1,F2,F3) have rms scatters of (1.06", 0.43", 0.50"), cf
(0.55", 0.31", 0.30") previously.
- A new track model was installed at 15:30 HST on 19991013.
Instant confirmatory inclinometry would
be desirable. However, the carousel is still being driven by only 2 of its
3 motors and inclinometry is unlikely for another few weeks.
Symmetry
The symmetry
remains good : see the
plot .
Iain Coulson
13 Oct 1999
|