PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/08-20:28:10
G02     55.3           37.0                9.5 +/-    0.67      14.6 +/-    0.67  0.030 / 0.040
G05     64.7           64.4               10.8 +/-    0.41      11.8 +/-    0.41  0.030 / 0.050
G12     182.3          33.5               13.2 +/-    1.19      21.6 +/-    1.19  0.040 / 0.090
G13     130.8          12.7               12.0 +/-    1.49      31.7 +/-    1.49  0.050 / 0.100
G21     268.0          14.0               13.8 +/-    1.44      35.1 +/-    1.44  0.040 / 0.080
G25     241.4          54.3               12.3 +/-    1.18      14.8 +/-    1.18  0.050 / 0.090
G29     325.0          49.7               11.1 +/-    1.40      14.0 +/-    1.40  0.040 / 0.070