PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/08-13:57:50
G02     204.4          28.2                8.9 +/-    1.61      16.1 +/-    1.61  0.110 / 0.250
G03     59.8           9.4                -8.4 +/-   30.19     -23.9 +/-   30.19  0.110 / 0.260
G06     158.8          68.2               10.4 +/-    0.38      11.1 +/-    0.38  0.120 / 0.180
G12     307.7          17.3                5.6 +/-    2.30      13.2 +/-    2.30  0.090 / 0.160
G17     35.6           49.3                7.9 +/-    1.32      10.1 +/-    1.32  0.060 / 0.070
G19     344.7          67.5                8.1 +/-    0.40       8.7 +/-    0.40  0.110 / 0.100
G24     297.6          39.0                5.9 +/-    5.04       8.8 +/-    5.04  0.040 / 0.030
G28     100.4          33.0                9.8 +/-    0.96      16.2 +/-    0.96  0.030 / 0.030