PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/12-14:12:50
G10     271.5          40.3                5.7 +/-    1.38       8.3 +/-    1.38  0.070 / 0.110
G13     40.5           15.9                4.1 +/-    3.16      10.1 +/-    3.16  0.090 / 0.120
G15     54.2           43.9                4.6 +/-    0.54       6.3 +/-    0.54  0.090 / 0.180
G18     316.2          66.7                2.5 +/-    0.92       2.7 +/-    0.92  0.080 / 0.160
G20     55.5           35.2                2.6 +/-    0.93       4.1 +/-    0.93  0.050 / 0.110
G21     30.3           74.9                4.1 +/-    0.43       4.3 +/-    0.43  0.050 / 0.090
G24     117.7          16.5                6.5 +/-    0.75      15.6 +/-    0.75  0.040 / 0.070
G27     315.8          23.1                1.5 +/-    1.69       3.0 +/-    1.69  0.040 / 0.040
G29     167.1          24.0                6.1 +/-    2.15      12.3 +/-    2.15  0.110 / 0.380
G32     205.2          13.0              -19.3 +/-    9.61     -50.2 +/-    9.61  0.120 / 0.450