PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/15-18:28:10
G01     299.7          37.3                7.5 +/-    1.96      11.4 +/-    1.96  0.060 / 0.100
G03     309.4          12.4                6.8 +/-    4.31      18.0 +/-    4.31  0.080 / 0.100
G10     113.4          34.9               10.2 +/-    1.03      16.2 +/-    1.03  0.040 / 0.020
G11     275.1          27.4                9.8 +/-    2.04      18.2 +/-    2.04  0.020 / 0.030
G14     10.9           63.3                7.4 +/-    0.57       8.1 +/-    0.57  0.100 / 0.150
G22     312.1          32.2                8.3 +/-    1.85      13.9 +/-    1.85  0.100 / 0.110
G25     74.7           18.4                9.3 +/-    1.25      21.4 +/-    1.25  0.060 / 0.090
G31     157.3          72.8                9.3 +/-    0.30       9.6 +/-    0.30  0.080 / 0.080
G32     44.0           47.1                7.6 +/-    0.96      10.0 +/-    0.96  0.040 / 0.040