Trigonometric Points
HMGS has established and maintains the National Trigonometric Network that includes 26.739 trigonometric control
points of Ιst, ΙΙnd, ΙΙΙrd και ΙVth order, for which precise coordinates have
been set.
Furthermore, 201 GPS Ιst order.
Per point availability:
On the basis of the Coordinates System (EGSA 87, HATT):
- Geo elliptic coordinates
- Rectangular and flat coordinates
- Astronomical coordinates
Reperes
HMGS has established and maintains the National Levelling Control (repere) Network that includes 12.000
points, along roadways of Ιst order, as well as 4.000 points along roadways of ΙΙnd
order.
Description of Levelling Control Point
Descriptions of each point are available for free at our new Geo-Index.
Trigonometric Points
HMGS has established and maintains the National Trigonometric Network that includes 26.739 trigonometric control points of Ιst, ΙΙnd, ΙΙΙrd και ΙVth order, for which precise coordinates have been set.
Furthermore, 201 GPS Ιst order.
Per point availability:
On the basis of the Coordinates System (EGSA 87, HATT):
Reperes
HMGS has established and maintains the National Levelling Control (repere) Network that includes 12.000
points, along roadways of Ιst order, as well as 4.000 points along roadways of ΙΙnd
order.
Description of Levelling Control Point
Descriptions of each point are available for free at our new Geo-Index.
