PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/25-09:57:40
G01     288.2          40.6                1.8 +/-    1.17       2.5 +/-    1.17  0.040 / 0.050
G03     312.9          19.9                2.4 +/-    2.18       5.3 +/-    2.18  0.040 / 0.040
G10     121.4          27.1                5.5 +/-    1.50      10.3 +/-    1.50  0.050 / 0.060
G11     263.9          25.1                6.0 +/-    5.60      11.7 +/-    5.60  0.060 / 0.080
G14     19.7           60.3                4.4 +/-    1.25       5.0 +/-    1.25  0.050 / 0.060
G18     250.8          46.5                6.3 +/-    3.42       8.4 +/-    3.42  0.050 / 0.060
G22     314.8          44.1                4.6 +/-    0.66       6.3 +/-    0.66  0.210 / 0.210
G25     65.2           19.0                1.8 +/-    1.75       4.1 +/-    1.75  0.200 / 0.200
G31     102.3          79.0                5.5 +/-    0.40       5.5 +/-    0.40  0.170 / 0.290
G32     54.3           39.1                3.7 +/-    0.97       5.5 +/-    0.97  0.080 / 0.310