PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/07-16:57:50
G01     298.1          37.9                7.3 +/-    2.01      11.0 +/-    2.01  0.070 / 0.090
G03     310.2          14.5                6.0 +/-    1.81      15.1 +/-    1.81  0.070 / 0.090
G10     114.7          33.8                9.2 +/-    0.93      15.0 +/-    0.93  0.020 / 0.030
G11     274.4          26.9                8.7 +/-    1.75      16.3 +/-    1.75  0.020 / 0.030
G14     12.1           62.8                6.5 +/-    0.72       7.2 +/-    0.72  0.080 / 0.140
G22     312.7          34.2                5.8 +/-    1.05       9.3 +/-    1.05  0.080 / 0.120
G25     73.6           18.7                7.7 +/-    1.63      17.5 +/-    1.63  0.040 / 0.040
G31     150.9          74.6                9.6 +/-    0.59      10.0 +/-    0.59  0.060 / 0.050
G32     45.8           45.7                6.9 +/-    0.72       9.2 +/-    0.72  0.050 / 0.070