PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/09-19:57:40
G02     267.0          79.5                9.3 +/-    1.31       9.5 +/-    1.31  0.050 / 0.130
G05     168.9          22.6               13.6 +/-    1.96      28.0 +/-    1.96  0.050 / 0.140
G06     40.3           49.6                8.8 +/-    0.38      11.2 +/-    0.38  0.030 / 0.050
G12     321.2          62.4                8.7 +/-    0.98       9.7 +/-    0.98  0.030 / 0.050
G17     76.6           18.5                9.9 +/-    1.05      22.5 +/-    1.05  0.040 / 0.040
G19     62.3           36.5                9.8 +/-    0.37      15.1 +/-    0.37  0.040 / 0.050
G24     236.9          30.3               12.6 +/-    0.89      21.9 +/-    0.89  0.080 / 0.120
G25     317.6          18.6                8.5 +/-    1.28      19.3 +/-    1.28  0.080 / 0.130