PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/17-14:57:30
G02     38.2           51.1                8.0 +/-    0.57      10.0 +/-    0.57  0.040 / 0.050
G05     133.6          67.4                8.6 +/-    0.60       9.2 +/-    0.60  0.040 / 0.040
G12     189.4          57.4               10.5 +/-    0.55      12.2 +/-    0.55  0.030 / 0.040
G25     276.8          59.6                9.5 +/-    0.88      10.8 +/-    0.88  0.040 / 0.040
G29     312.9          34.0                7.0 +/-    0.94      11.3 +/-    0.94  0.030 / 0.030