PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/24-17:27:40
G02     58.7           34.7                7.0 +/-    0.80      11.2 +/-    0.80  0.050 / 0.060
G05     58.8           63.2                9.6 +/-    0.53      10.6 +/-    0.53  0.040 / 0.060
G12     182.4          29.2               10.7 +/-    2.48      19.1 +/-    2.48  0.040 / 0.130
G13     126.7          16.1               12.7 +/-    1.43      30.8 +/-    1.43  0.070 / 0.110
G15     166.9          11.0                3.5 +/-   28.75       9.7 +/-   28.75  0.030 / 0.040
G21     272.6          18.2                9.3 +/-    3.04      21.4 +/-    3.04  0.040 / 0.030
G25     230.7          50.4               10.6 +/-    1.12      13.3 +/-    1.12  0.100 / 0.250
G29     328.9          55.2                7.4 +/-    0.68       8.8 +/-    0.68  0.090 / 0.250