PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/11-03:27:40
G01     39.8           14.0                2.1 +/-    2.97       5.4 +/-    2.97  0.050 / 0.060
G02     198.7          12.8                4.2 +/-    2.58      11.1 +/-    2.58  0.040 / 0.060
G06     176.4          40.7                5.8 +/-    1.45       8.4 +/-    1.45  0.030 / 0.030
G13     235.8          19.9                3.8 +/-    4.71       8.3 +/-    4.71  0.030 / 0.030
G15     267.2          11.3                3.9 +/-    1.23      10.5 +/-    1.23  0.090 / 0.070
G17     4.7            68.7                3.1 +/-    0.61       3.3 +/-    0.61  0.080 / 0.070
G19     289.1          70.7                2.0 +/-    0.82       2.1 +/-    0.82  0.100 / 0.290
G24     315.8          21.1               -0.1 +/-    2.92      -0.2 +/-    2.92  0.200 / 0.300
G28     76.5           44.7                4.2 +/-    0.83       5.7 +/-    0.83  0.580 / 0.340
G30     154.1          20.5                6.1 +/-    1.84      13.2 +/-    1.84  0.350 / 0.590