PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/07-15:27:50
G08     269.9          18.0                6.1 +/-    1.28      14.2 +/-    1.28  0.140 / 0.150
G10     59.8           58.9                6.6 +/-    0.92       7.6 +/-    0.92  0.270 / 0.280
G11     313.3          15.0                3.8 +/-    1.27       9.5 +/-    1.27  0.080 / 0.100
G14     264.5          64.8                8.6 +/-    0.91       9.4 +/-    0.91  0.100 / 0.110
G21     153.7          13.3                8.2 +/-    2.43      21.3 +/-    2.43  0.140 / 0.270
G24     40.2           11.0                6.7 +/-    2.74      18.4 +/-    2.74  0.170 / 0.240
G27     231.2          15.8                7.0 +/-    3.34      17.1 +/-    3.34  0.050 / 0.070
G31     178.2          30.2                9.4 +/-    1.77      16.3 +/-    1.77  0.030 / 0.070
G32     339.3          74.2                7.4 +/-    0.28       7.7 +/-    0.28  0.030 / 0.030