PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/04-17:27:50
G01     288.2          40.5                2.1 +/-    1.80       3.0 +/-    1.80  0.060 / 0.080
G03     313.0          20.9                6.2 +/-    2.26      13.3 +/-    2.26  0.050 / 0.050
G10     121.3          27.5                9.0 +/-    1.24      16.7 +/-    1.24  0.070 / 0.060
G11     265.5          25.2                7.8 +/-    4.12      15.2 +/-    4.12  0.080 / 0.060
G14     25.4           58.3                8.2 +/-    1.22       9.5 +/-    1.22  0.050 / 0.070
G22     314.3          41.1                8.1 +/-    1.16      11.5 +/-    1.16  0.050 / 0.070
G25     65.2           19.1                6.9 +/-    1.42      15.5 +/-    1.42  0.080 / 0.120
G26     155.3          14.9               11.2 +/-    2.11      27.9 +/-    2.11  0.090 / 0.120
G31     114.9          79.8                8.9 +/-    0.62       9.0 +/-    0.62  0.030 / 0.020
G32     53.3           40.2                7.0 +/-    1.41      10.2 +/-    1.41  0.030 / 0.020