These values are formally defined in LINZS25006.
Tiers
The following Tiers are used by LINZ to describe network accuracy.
Tier | Accuracy (m) |
---|---|
A | 0.05 |
B | 0.10 |
C | 0.15 |
D | 0.20 |
E | 0.25 |
F | 0.35 |
G | 0.50 |
H | 1 |
J | 2 |
K | 5 |
M | 10 |
N | 20 |
P | 50 |
R | 100 |
Classes
The following Classes are used by LINZ to describe local accuracy.
Class | Constant term (c) (m) | Distance dependent term (p) (m) |
---|---|---|
I | 0.003 | 1 x 10-8 |
II | 0.003 | 3 x 10-8 |
III | 0.003 | 1 x 10-7 |
IV | 0.003 | 3 x 10-7 |
V | 0.003 | 1 x 10-6 |
VI | 0.01 | 3 x 10-6 |
VII | 0.01 | 1 x 10-5 |
VIII | 0.01 | 5 x 10-5 |
IX | 0.02 | 1 x 10-4 |
X | 0.03 | 1.5 x 10-4 |
XI | 0.06 | 1.5 x 10-4 |
XII | 0.30 | 6 x 10-4 |
XIII | 0.60 | 1 x 10-3 |
XIV | 1 | 3 x 10-3 |
XV | 3 | 1 x 10-2 |
XVI | 10 | 3 x 10-2 |
Landonline Orders
The following Landonline Orders are used by LINZ to classify the accuracy of coordinates in Landonline.
Landonline Order | Horizontal Tier | Horizontal Class | Vertical Tier | Vertical Class |
---|---|---|---|---|
0 | A | II | A | II |
1 | A | III | B | IV |
2 | B | V | E | VI |
3 | B | VI | F | VII |
4 | C | VII | F | VIII |
5 | C | VIII | F | IX |
6 | C | X | - | - |
7 | D | XI | - | - |
8 | G | XII | - | - |
9 | K | XIV | - | - |
10 | N | XV | - | - |
11 | P | XVI | - | - |
12a | - | - | - | - |
1V | - | - | E | VI |
2V | - | - | F | VII |
3V | - | - | F | IX |
4V | - | - | G | X |
5V | - | - | H | XII |
6Vb | - | - | - | - |
a Order 12 includes all coordinates that do not achieve the Order 11 requirements b Order 6V includes all coordinates that do not achieve the Order 5V requirements |