PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/10-19:58:10
G02     47.1           43.8                9.3 +/-    1.69      12.8 +/-    1.69  0.020 / 0.040
G05     89.9           69.4                9.2 +/-    0.64       9.8 +/-    0.64  0.030 / 0.040
G12     183.8          44.0               10.9 +/-    1.25      14.9 +/-    1.25  0.050 / 0.060
G25     260.1          58.4               10.0 +/-    1.06      11.5 +/-    1.06  0.040 / 0.060
G29     318.8          41.1                9.7 +/-    1.15      13.9 +/-    1.15  0.050 / 0.070