PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/30-21:58:10
G02     29.3           58.5                9.4 +/-    0.88      10.8 +/-    0.88  0.040 / 0.030
G05     142.8          59.8               10.1 +/-    0.57      11.5 +/-    0.57  0.040 / 0.030
G06     52.6           16.8                7.1 +/-    1.59      16.9 +/-    1.59  0.050 / 0.040
G12     197.1          69.5                9.5 +/-    0.66      10.0 +/-    0.66  0.050 / 0.040
G19     96.8           13.6                8.6 +/-    2.81      22.1 +/-    2.81  0.060 / 0.100
G25     301.0          51.5                9.6 +/-    1.86      11.9 +/-    1.86  0.080 / 0.140
G29     304.7          24.7                8.5 +/-    0.94      16.6 +/-    0.94  0.130 / 0.310