|
|
|
NRC1
ITRF2000
|
| Segment: |
0 |
No-of-obs-used: |
4515
|
|
Vel(mm/a) |
Vel-sig(mm/a) |
RMS(mm) |
StdDevObsUnitWt |
Vel-XYZ(mm/a):
|
| N: |
1.3 |
0.3 |
4.11 |
1.21 |
-6.6
|
| E: |
-7.1 |
0.3 |
15.72 |
2.25 |
-2.9
|
| U: |
3.0 |
0.3 |
8.04 |
0.69 |
3.0
|
|
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)
|
|
