PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/01-20:28:00
G07     333.6          58.6               11.7 +/-    1.01      13.4 +/-    1.01  0.060 / 0.090
G08     102.9          50.1               13.3 +/-    0.92      16.8 +/-    0.92  0.060 / 0.070
G09     201.8          78.4               12.4 +/-    0.44      12.7 +/-    0.44  0.120 / 0.250
G11     147.0          11.5               20.2 +/-    3.31      54.5 +/-    3.31  0.130 / 0.360
G16     45.1           14.6                7.8 +/-    1.95      19.5 +/-    1.95  0.090 / 0.140
G23     154.6          47.8               15.1 +/-    1.18      19.6 +/-    1.18  0.080 / 0.110
G27     61.6           35.2                9.8 +/-    0.50      15.5 +/-    0.50  0.030 / 0.070
G28     233.1          22.8               16.0 +/-    2.04      33.0 +/-    2.04  0.040 / 0.060
G30     298.5          32.4               10.6 +/-    1.16      17.7 +/-    1.16  0.030 / 0.060