PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/26-16:58:00
G02     203.4          30.9               13.0 +/-    3.18      22.4 +/-    3.18  0.070 / 0.190
G06     157.3          68.5               10.6 +/-    1.06      11.3 +/-    1.06  0.090 / 0.160
G12     307.7          17.2                8.1 +/-    1.68      19.2 +/-    1.68  0.070 / 0.120
G17     34.6           50.3                8.3 +/-    0.82      10.4 +/-    0.82  0.070 / 0.120
G19     348.7          67.3                8.6 +/-    1.09       9.3 +/-    1.09  0.070 / 0.120
G24     298.7          38.2               10.7 +/-    0.96      16.1 +/-    0.96  0.080 / 0.150
G28     100.6          32.5                9.1 +/-    1.04      15.2 +/-    1.04  0.100 / 0.100