PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/09-15:42:40
G01     319.3          17.2                6.8 +/-    0.85      16.0 +/-    0.85  0.030 / 0.050
G08     260.3          13.5                7.6 +/-    1.44      19.5 +/-    1.44  0.040 / 0.050
G10     78.1           54.1                7.8 +/-    0.61       9.4 +/-    0.61  0.140 / 0.360
G11     305.8          21.0                7.0 +/-    2.40      15.1 +/-    2.40  0.120 / 0.380
G14     291.2          69.6                8.1 +/-    0.45       8.6 +/-    0.45  0.040 / 0.060
G22     300.4          10.9                2.0 +/-   11.58       5.4 +/-   11.58  0.050 / 0.070
G31     175.9          41.5               11.1 +/-    0.58      15.7 +/-    0.58  0.140 / 0.200
G32     7.1            67.7                8.2 +/-    0.95       8.8 +/-    0.95  0.130 / 0.180