PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/31-02:42:30
G02     257.7          80.1                6.3 +/-    0.67       6.4 +/-    0.67  0.050 / 0.050
G05     169.3          20.1                7.8 +/-    1.74      17.0 +/-    1.74  0.050 / 0.050
G06     40.0           55.7                6.2 +/-    0.40       7.4 +/-    0.40  0.070 / 0.100
G12     321.2          54.6                6.8 +/-    1.30       8.2 +/-    1.30  0.080 / 0.110
G17     72.1           23.4                5.6 +/-    0.41      11.4 +/-    0.41  0.050 / 0.180
G19     60.3           36.9                5.6 +/-    1.20       8.5 +/-    1.20  0.050 / 0.190
G24     242.2          32.9               10.5 +/-    1.24      17.3 +/-    1.24  0.060 / 0.100
G25     317.2          14.3                4.7 +/-    1.27      12.0 +/-    1.27  0.060 / 0.110