PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/04-22:13:10
G03     186.9          13.5               11.0 +/-    2.86      28.3 +/-    2.86  0.050 / 0.110
G07     297.4          41.2                7.9 +/-    0.70      11.2 +/-    0.70  0.060 / 0.100
G08     137.8          33.4               12.3 +/-    0.86      20.1 +/-    0.86  0.040 / 0.080
G09     317.4          69.0                6.9 +/-    0.63       7.3 +/-    0.63  0.050 / 0.070
G16     41.7           33.4                6.3 +/-    1.06      10.3 +/-    1.06  0.050 / 0.120
G23     133.3          71.8                9.5 +/-    0.76      10.0 +/-    0.76  0.050 / 0.130
G27     89.4           36.0                9.1 +/-    0.87      14.2 +/-    0.87  0.030 / 0.050
G30     280.6          20.1                7.7 +/-    1.69      16.9 +/-    1.69  0.030 / 0.040