PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/11-16:42:40
G01     297.4          38.1                7.8 +/-    2.03      11.7 +/-    2.03  0.100 / 0.100
G03     310.5          15.2                6.9 +/-    2.03      17.1 +/-    2.03  0.090 / 0.100
G10     115.2          33.3                9.6 +/-    1.07      15.8 +/-    1.07  0.030 / 0.020
G11     273.9          26.8                8.9 +/-    1.16      16.7 +/-    1.16  0.020 / 0.020
G14     13.0           62.6                7.6 +/-    0.90       8.4 +/-    0.90  0.080 / 0.120
G22     312.9          34.9                7.0 +/-    1.57      11.2 +/-    1.57  0.070 / 0.120
G25     73.0           18.7                9.3 +/-    1.57      21.1 +/-    1.57  0.050 / 0.040
G31     148.6          75.3               10.1 +/-    0.51      10.4 +/-    0.51  0.040 / 0.040
G32     46.5           45.2                7.2 +/-    0.73       9.7 +/-    0.73  0.050 / 0.090