PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/27-03:28:00
G05     48.9           16.0                5.3 +/-    0.68      12.7 +/-    0.68  0.140 / 0.320
G10     235.9          11.9               13.2 +/-    4.44      35.3 +/-    4.44  0.100 / 0.330
G13     76.5           36.5                9.1 +/-    1.01      14.0 +/-    1.01  0.040 / 0.090
G15     125.3          52.0               12.0 +/-    0.57      14.8 +/-    0.57  0.050 / 0.090
G16     313.8          12.8                8.3 +/-    2.32      21.8 +/-    2.32  0.100 / 0.260
G20     253.3          50.9               14.1 +/-    1.52      17.6 +/-    1.52  0.100 / 0.360
G21     312.3          46.3                9.8 +/-    1.08      13.0 +/-    1.08  0.110 / 0.300
G25     200.1          11.4               10.0 +/-    1.00      27.1 +/-    1.00  0.170 / 0.340
G26     286.4          20.9                9.7 +/-    1.74      20.9 +/-    1.74  0.080 / 0.140
G29     155.9          73.7               11.8 +/-    0.92      12.3 +/-    0.92  0.060 / 0.130