PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/13-02:12:30
G02     201.8          33.9                8.6 +/-    1.18      13.9 +/-    1.18  0.080 / 0.110
G06     165.4          65.7                6.7 +/-    0.41       7.3 +/-    0.41  0.080 / 0.130
G12     306.0          12.5                4.3 +/-    4.10      11.3 +/-    4.10  0.230 / 0.290
G17     30.9           53.3                5.8 +/-    0.77       7.0 +/-    0.77  0.150 / 0.190
G19     355.7          66.6                4.5 +/-    0.36       4.9 +/-    0.36  0.030 / 0.040
G24     301.1          36.4                5.2 +/-    2.06       8.0 +/-    2.06  0.040 / 0.040
G28     100.5          32.3                5.3 +/-    1.03       8.9 +/-    1.03  0.040 / 0.030