PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/09-15:57:40
G01     316.7          22.6                7.0 +/-    1.77      14.4 +/-    1.77  0.170 / 0.250
G10     88.3           50.2                7.4 +/-    0.71       9.3 +/-    0.71  0.130 / 0.340
G11     299.7          24.0                6.8 +/-    0.55      13.6 +/-    0.55  0.050 / 0.050
G14     312.3          70.6                7.3 +/-    0.63       7.7 +/-    0.63  0.030 / 0.040
G22     303.8          15.8                6.0 +/-    1.26      14.7 +/-    1.26  0.040 / 0.040
G25     96.6           11.1               10.9 +/-    2.40      29.6 +/-    2.40  0.050 / 0.040
G31     174.1          49.1               10.1 +/-    0.69      12.9 +/-    0.69  0.190 / 0.200
G32     18.7           62.7                7.5 +/-    0.73       8.3 +/-    0.73  0.210 / 0.310