|
PKDB
ITRF2000
|
Segment: |
0 |
No-of-obs-used: |
3576
|
|
Vel(mm/a) |
Vel-sig(mm/a) |
RMS(mm) |
StdDevObsUnitWt |
Vel-XYZ(mm/a):
|
N: |
23.8 |
0.3 |
13.83 |
3.90 |
-36.5
|
E: |
-49.8 |
0.3 |
27.32 |
6.38 |
36.3
|
U: |
1.5 |
0.3 |
12.01 |
0.85 |
20.2
|
|
Error bars are plus/minus
one standard deviation
Error bars on individual observations
= formal-error x scale-factor.
Currently the scale-factors are:
N:3.0, E:4.0, U:3.0
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)
|
|