PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/26-17:57:40
G02     217.0          58.8               11.3 +/-    0.94      13.0 +/-    0.94  0.060 / 0.100
G06     54.5           71.9               10.5 +/-    0.75      11.0 +/-    0.75  0.050 / 0.100
G12     319.9          40.2                9.9 +/-    1.04      14.4 +/-    1.04  0.110 / 0.390
G17     58.1           31.6                8.7 +/-    1.08      14.8 +/-    1.08  0.150 / 0.470
G19     36.5           51.1                8.7 +/-    0.34      10.8 +/-    0.34  0.050 / 0.060
G24     262.7          41.7               11.9 +/-    1.49      16.8 +/-    1.49  0.040 / 0.060
G28     123.0          13.3                9.3 +/-    1.28      24.2 +/-    1.28  0.070 / 0.090