PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/11-16:57:50
G01     289.0          40.4                3.2 +/-    1.94       4.7 +/-    1.94  0.060 / 0.070
G03     312.9          20.7                6.4 +/-    1.99      13.7 +/-    1.99  0.070 / 0.070
G10     120.9          28.0               10.1 +/-    1.14      18.6 +/-    1.14  0.030 / 0.020
G11     266.4          25.3                8.1 +/-    3.71      15.6 +/-    3.71  0.030 / 0.020
G14     24.2           58.8                7.7 +/-    0.85       8.8 +/-    0.85  0.090 / 0.110
G22     314.2          40.9                8.2 +/-    1.53      11.8 +/-    1.53  0.060 / 0.110
G25     65.9           19.1                8.4 +/-    1.14      18.8 +/-    1.14  0.060 / 0.050
G26     155.5          14.5               11.3 +/-    1.63      28.5 +/-    1.63  0.070 / 0.060
G31     117.3          79.6                9.7 +/-    0.58       9.9 +/-    0.58  0.060 / 0.110
G32     52.8           40.5                7.3 +/-    1.46      10.6 +/-    1.46  0.050 / 0.070