|
|
|
P676
Cleaned/Detrended
|
|
Vel(mm/a) |
Vel-sig(mm/a) |
White-Noise |
Random-Walk |
Flicker-Noise
|
| N: |
-1.91 |
0.25 |
0.850 |
0.400 |
1.700
|
| E: |
-1.38 |
0.33 |
0.840 |
0.600 |
1.400
|
| U: |
2.04 |
0.53 |
3.200 |
0.000 |
6.400
|
|
Error bars are plus/minus
one standard deviation
Error bars on individual observations
= formal-error x scale-factor.
Currently the scale-factors are:
N:3, E:4, U:3
Red points are positions determined using final orbits
Blue points are positions determined using preliminary orbits
|
Vel-stddev = sqrt(WN**2+RW**2)
where WN is a white noise contribution
from propagating the error bars
on the observations
and RW is a random walk contribution
(= a*sqrt(timespan)/timespan
where a is 0.001 m/yr**1/2)
|
|
