National Report of Sweden to the NKG General ... - Lantmäteriet

4An antenna calibration field wasestablished in April 2007 on the roof ofthe headquarters of Lantmäteriet inGävle, primarily for testing andcalibration of the antennas used inSWEPOS. All new, re-built orproblematic antennas in the SWEPOSnetwork are tested on the test field.Figure 1.4: The SWEPOS network by thetime for the last NKG General Assembly in2006. Orange dots are stations that werebuilt after the meeting during the summer2006.Seven SWEPOS stations are included inEPN. These stations are Onsala,Mårtsbo, Visby, Borås, Skellefteå,Vilhelmina and Kiruna (ONSA, MAR6,VIS0, SPT0, SKE0, VIL0 and KIR0).Daily, hourly and real-time (EUREF-IP)data (1 second) are delivered for allstations, except for Vilhelmina, wherejust daily and hourly files aresubmitted.Furthermore, Onsala, Mårtsbo, Visby,Borås and Kiruna are included in theIGS network and two stations(Skellefteå and Stockholm) areproposed to be included.Sweden has also, according to the coordinationwithin NKG, offered allseven Swedish EPN stations exceptVilhelmina for ECGN 15 . GNSS data fromSWEPOS stations are furthermore usedin meteorological applications such as E-GVAP 16 .Figure 1.5: The SWEPOS network inSeptember 2010 with a number ofbordering Norwegian, Danish and Finnishstations that are used in SWEPOS NetworkRTK Service. Squares are class A stationsand dots are class B stations.1.4 SWEPOS servicesBoth SWEPOS data for post-processingin RINEX 17 format and an automatedprocessing service (available onwww.swepos.com) have been availablefor a long time. Some developmentshave been done and during 2008 theprocessing service changed from15ECGN = European Combined Geodetic Network16E-GVAP = EUMETNET EIG GNSS water vapour programme17RINEX = Receiver Independent Exchange format