PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/01-01:13:10
G01     60.0           30.5                5.0 +/-    0.60       8.6 +/-    0.60  0.050 / 0.050
G06     181.2          14.0                8.9 +/-    2.17      22.7 +/-    2.17  0.050 / 0.050
G07     142.4          22.5                8.2 +/-    2.85      16.9 +/-    2.85  0.040 / 0.070
G11     49.6           26.3                3.5 +/-    2.45       6.6 +/-    2.45  0.050 / 0.060
G13     263.3          35.0                6.7 +/-    1.73      10.6 +/-    1.73  0.260 / 0.300
G15     293.1          16.7                4.2 +/-    1.02       9.9 +/-    1.02  0.180 / 0.200
G17     255.6          74.5                6.3 +/-    0.42       6.6 +/-    0.42  0.030 / 0.030
G19     233.0          51.0                6.9 +/-    2.11       8.6 +/-    2.11  0.030 / 0.030
G28     37.0           56.3                7.1 +/-    0.68       8.3 +/-    0.68  0.090 / 0.080
G30     142.9          48.2                8.0 +/-    0.39      10.3 +/-    0.39  0.090 / 0.090