PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/24-22:43:10
G02     60.4           33.6                7.8 +/-    1.39      12.6 +/-    1.39  0.040 / 0.070
G05     56.3           61.5                9.7 +/-    0.63      10.9 +/-    0.63  0.050 / 0.060
G12     183.5          27.8               13.3 +/-    2.62      24.4 +/-    2.62  0.030 / 0.040
G13     127.0          17.4               12.8 +/-    1.98      30.1 +/-    1.98  0.020 / 0.040
G15     164.0          13.2               15.3 +/-    2.11      39.8 +/-    2.11  0.060 / 0.130
G20     208.5          65.5               13.8 +/-    1.68      15.0 +/-    1.68  0.050 / 0.130
G21     273.5          19.2                9.9 +/-    1.74      22.2 +/-    1.74  0.080 / 0.250
G25     225.0          47.9               11.3 +/-    0.80      14.7 +/-    0.80  0.080 / 0.260
G29     331.7          59.4               10.7 +/-    0.74      12.2 +/-    0.74  0.030 / 0.050