PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/12-15:43:10
G01     317.0          22.0                7.7 +/-    3.04      16.2 +/-    3.04  0.090 / 0.290
G10     87.2           50.7                7.1 +/-    0.89       8.9 +/-    0.89  0.100 / 0.230
G11     300.6          23.6                7.2 +/-    0.74      14.6 +/-    0.74  0.270 / 0.440
G14     309.5          70.6                7.4 +/-    0.53       7.8 +/-    0.53  0.260 / 0.330
G22     303.5          15.3                6.5 +/-    0.90      16.0 +/-    0.90  0.040 / 0.040
G25     97.3           10.8                9.8 +/-    5.34      27.0 +/-    5.34  0.040 / 0.050
G31     174.2          48.3                9.7 +/-    0.68      12.4 +/-    0.68  0.040 / 0.040
G32     17.7           63.2                6.9 +/-    0.59       7.6 +/-    0.59  0.030 / 0.040