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                6.0 +/-    0.63       6.1 +/-    0.63  0.050 / 0.040
G05     169.3          20.1                8.9 +/-    1.35      19.6 +/-    1.35  0.060 / 0.040
G06     40.0           55.7                5.5 +/-    0.46       6.6 +/-    0.46  0.100 / 0.160
G12     321.2          54.6                6.7 +/-    0.49       8.0 +/-    0.49  0.100 / 0.160
G17     72.1           23.4                5.7 +/-    0.88      11.5 +/-    0.88  0.150 / 0.120
G19     60.3           36.9                5.4 +/-    1.17       8.2 +/-    1.17  0.110 / 0.110
G24     242.2          32.9                9.7 +/-    1.66      16.0 +/-    1.66  0.100 / 0.430
G25     317.2          14.3                4.4 +/-    2.18      11.2 +/-    2.18  0.200 / 0.390