PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/24-02:27:50
G01     41.2           16.3                3.4 +/-    1.46       8.3 +/-    1.46  0.080 / 0.090
G02     198.7          9.9                -1.4 +/-    3.51      -4.0 +/-    3.51  0.070 / 0.090
G06     176.5          37.9                8.4 +/-    0.55      12.6 +/-    0.55  0.040 / 0.080
G13     238.3          21.9                5.4 +/-    3.25      11.3 +/-    3.25  0.040 / 0.070
G15     270.0          12.4                5.6 +/-    1.64      14.9 +/-    1.64  0.030 / 0.040
G17     356.7          71.3                6.0 +/-    0.66       6.3 +/-    0.66  0.030 / 0.020
G19     278.8          69.4                4.4 +/-    0.73       4.6 +/-    0.73  0.140 / 0.250
G24     316.8          18.7                5.2 +/-    2.09      11.7 +/-    2.09  0.130 / 0.270
G28     72.5           46.3                4.0 +/-    1.21       5.3 +/-    1.21  0.140 / 0.210
G30     153.5          23.7                8.3 +/-    1.36      16.7 +/-    1.36  0.170 / 0.190