PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/30-15:57:20
G02     33.3           55.0                7.5 +/-    0.57       8.9 +/-    0.57  0.040 / 0.050
G05     140.1          64.3               10.2 +/-    0.64      11.2 +/-    0.64  0.050 / 0.050
G06     56.2           12.1                6.6 +/-    1.50      17.5 +/-    1.50  0.030 / 0.050
G12     190.5          61.6                9.1 +/-    0.88      10.2 +/-    0.88  0.040 / 0.050
G19     101.8          10.7                7.8 +/-    1.11      21.3 +/-    1.11  0.030 / 0.040
G25     286.8          57.8                8.0 +/-    0.74       9.3 +/-    0.74  0.030 / 0.050
G29     309.8          30.4                7.3 +/-    1.40      12.6 +/-    1.40  0.130 / 0.160