PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/12-20:43:10
G07     327.9          55.9               11.2 +/-    0.66      13.2 +/-    0.66  0.160 / 0.130
G08     109.7          51.3               12.9 +/-    0.43      16.1 +/-    0.43  0.140 / 0.170
G09     202.0          77.4               12.3 +/-    0.30      12.6 +/-    0.30  0.040 / 0.070
G11     150.0          10.4               -1.6 +/-   21.18      -4.5 +/-   21.18  0.050 / 0.070
G16     46.0           9.5                 9.0 +/-    4.47      25.3 +/-    4.47  0.190 / 0.880
G23     153.6          42.4               12.1 +/-    1.43      17.0 +/-    1.43  0.210 / 0.460
G27     57.4           32.6                9.8 +/-    1.37      16.3 +/-    1.37  0.040 / 0.050
G28     235.2          27.7               12.0 +/-    1.39      22.0 +/-    1.39  0.050 / 0.050
G30     301.4          35.8               11.7 +/-    1.55      18.3 +/-    1.55  0.150 / 0.680