PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/10-21:27:40
G02     58.6           34.6               10.1 +/-    0.60      16.2 +/-    0.60  0.040 / 0.110
G05     61.6           64.9               11.2 +/-    0.31      12.2 +/-    0.31  0.080 / 0.100
G12     184.5          31.3               14.9 +/-    1.45      25.5 +/-    1.45  0.040 / 0.070
G13     129.4          15.4               17.1 +/-    2.61      42.1 +/-    2.61  0.050 / 0.050
G15     164.9          11.4               17.4 +/-   21.02      47.1 +/-   21.02  0.030 / 0.040
G20     207.0          62.0               15.0 +/-    0.62      16.8 +/-    0.62  0.040 / 0.040
G21     271.4          17.8               13.3 +/-    1.68      30.9 +/-    1.68  0.160 / 0.390
G25     228.1          50.3               15.3 +/-    0.93      19.2 +/-    0.93  0.110 / 0.370
G29     330.3          57.2               11.2 +/-    0.63      13.1 +/-    0.63  0.040 / 0.050