PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/08-22:58:00
G02     64.0           29.5                9.2 +/-    0.58      16.2 +/-    0.58  0.070 / 0.110
G05     51.3           55.3                8.5 +/-    0.71      10.1 +/-    0.71  0.090 / 0.130
G12     181.8          24.3               12.1 +/-    0.70      24.0 +/-    0.70  0.040 / 0.040
G13     123.1          19.3               12.1 +/-    1.61      27.2 +/-    1.61  0.030 / 0.030
G15     162.0          16.1               11.5 +/-    2.63      27.8 +/-    2.63  0.200 / 0.300
G21     275.9          20.2                9.6 +/-    1.48      21.0 +/-    1.48  0.110 / 0.410
G25     228.5          47.3               10.7 +/-    3.71      14.0 +/-    3.71  0.100 / 0.240
G29     331.3          59.3                9.7 +/-    0.40      11.0 +/-    0.40  0.090 / 0.260