PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/15-03:27:50
G01     245.7          32.6                6.4 +/-    1.16      10.6 +/-    1.16  0.100 / 0.120
G03     314.9          47.2                5.5 +/-    0.59       7.1 +/-    0.59  0.130 / 0.110
G14     64.7           38.6                5.6 +/-    0.63       8.3 +/-    0.63  0.050 / 0.080
G16     159.1          23.7                5.1 +/-    1.55      10.2 +/-    1.55  0.060 / 0.100
G18     216.3          23.2                7.8 +/-    2.41      16.0 +/-    2.41  0.040 / 0.040
G22     297.0          69.5                7.4 +/-    0.38       7.8 +/-    0.38  0.040 / 0.040
G23     290.1          21.7                7.0 +/-    1.29      14.9 +/-    1.29  0.050 / 0.060
G26     130.2          42.3                6.4 +/-    1.02       9.0 +/-    1.02  0.070 / 0.040
G31     40.7           52.7                5.7 +/-    0.61       7.0 +/-    0.61  0.080 / 0.200
G32     81.9           18.9                4.3 +/-    1.71       9.8 +/-    1.71  0.110 / 0.180