PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/21-08:42:50
G07     37.3           69.5                5.5 +/-    0.57       5.8 +/-    0.57  0.050 / 0.040
G08     54.0           42.1                4.6 +/-    1.38       6.5 +/-    1.38  0.030 / 0.040
G09     174.7          37.5                7.3 +/-    1.06      11.1 +/-    1.06  0.040 / 0.040
G11     122.7          32.2                5.8 +/-    1.09       9.7 +/-    1.09  0.030 / 0.030
G17     198.7          10.8               -4.4 +/-   15.28     -12.1 +/-   15.28  0.070 / 0.150
G18     107.6          13.8                4.8 +/-    2.37      12.2 +/-    2.37  0.110 / 0.150
G23     161.0          13.9                5.1 +/-    0.83      12.9 +/-    0.83  0.100 / 0.290
G27     38.6           12.8                1.8 +/-    0.93       4.6 +/-    0.93  0.090 / 0.250
G28     266.8          48.9                5.1 +/-    1.15       6.5 +/-    1.15  0.190 / 0.400
G30     324.9          54.5                5.2 +/-    0.72       6.2 +/-    0.72  0.180 / 0.410