PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/15-13:57:50
G01     311.8          29.2                6.5 +/-    0.79      11.6 +/-    0.79  0.030 / 0.050
G10     99.5           44.5                7.4 +/-    1.18      10.1 +/-    1.18  0.070 / 0.080
G11     291.2          26.2                8.0 +/-    2.52      15.2 +/-    2.52  0.040 / 0.040
G14     335.1          69.4                6.3 +/-    0.50       6.7 +/-    0.50  0.030 / 0.040
G22     308.1          23.8                7.0 +/-    1.82      14.1 +/-    1.82  0.150 / 0.240
G25     88.8           14.8                8.6 +/-    2.18      21.4 +/-    2.18  0.190 / 0.210
G31     168.9          59.6                9.8 +/-    0.42      11.2 +/-    0.42  0.090 / 0.140
G32     30.9           55.8                6.1 +/-    0.74       7.2 +/-    0.74  0.170 / 0.170