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The Geodetic Archive contains records and measurement documents from the end of the 18th century onwards.
The extensive content of the geodetic archive comprises e.g. measurements and calculations for the national geodetic reference networks - GNSS measurements, levelling data, gravity measurements and older distance and angle measurements.
These measurements and calculations result in coordinates and heights for geodetic points.
Contents of Lantmäteriet's geodetic archive
| Object type | Quantity |
|---|---|
| SWEREF points, class 1 in SWEREF 99 | 400 |
| RIX 95 points, class 2 in SWEREF 99 | 10 000 |
| Triangulation points, class A, from the third triangulation | 4 000 |
| Triangulation points, class B, densification of the third national triangulation | 300 |
| Triangulation points, Class C, not intended for geodetic frame measurement | 1 000 |
| Older triangulation points | 12 000 |
| Flight signaling horizontal ground control points | 8 000 |
| Astronomical points | 200 |
| Height benchmarks from the third precision levelling, RH 2000 | 50 000 |
| Older height control points | 70 000 |
| Barometric height control points | 6 000 |
| Gravity points | 20 000 |
| Calculation manuscripts and measurement protocols | 10 000 |
| Point and network maps | 5 000 |