PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/04-19:57:30
G03     242.7          69.8               11.3 +/-    0.75      12.0 +/-    0.75  0.050 / 0.050
G09     300.9          14.5                9.0 +/-    3.03      22.7 +/-    3.03  0.040 / 0.040
G14     96.5           17.7                9.4 +/-    1.43      22.0 +/-    1.43  0.110 / 0.210
G16     135.3          55.9               12.7 +/-    0.36      15.0 +/-    0.36  0.130 / 0.270
G22     196.6          58.9               11.9 +/-    0.47      13.7 +/-    0.47  0.030 / 0.040
G23     317.0          46.9               11.5 +/-    0.66      15.1 +/-    0.66  0.030 / 0.050
G26     75.1           53.2               10.8 +/-    0.84      13.2 +/-    0.84  0.070 / 0.210
G31     50.4           22.3                7.5 +/-    2.17      15.6 +/-    2.17  0.130 / 0.190