PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/30-15:57:40
G02     33.3           55.0                7.1 +/-    0.80       8.5 +/-    0.80  0.050 / 0.040
G05     140.1          64.3                9.3 +/-    0.34      10.2 +/-    0.34  0.050 / 0.040
G06     56.2           12.1                6.8 +/-    1.72      18.1 +/-    1.72  0.040 / 0.040
G12     190.5          61.6               10.0 +/-    0.33      11.2 +/-    0.33  0.030 / 0.030
G19     101.8          10.7                9.5 +/-    1.38      26.2 +/-    1.38  0.030 / 0.030
G25     286.8          57.8                7.9 +/-    1.61       9.1 +/-    1.61  0.030 / 0.030
G29     309.8          30.4                8.2 +/-    1.58      14.2 +/-    1.58  0.080 / 0.120