PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/14-17:13:00
G01     320.9          11.0              -11.5 +/-   30.12     -31.5 +/-   30.12  0.180 / 0.430
G08     266.0          16.9                9.4 +/-    0.83      22.3 +/-    0.83  0.190 / 0.460
G10     65.4           57.7                6.8 +/-    0.84       7.9 +/-    0.84  0.180 / 0.280
G11     310.8          17.6                6.6 +/-    1.62      15.3 +/-    1.62  0.210 / 0.350
G14     272.6          67.1                6.4 +/-    0.44       6.9 +/-    0.44  0.060 / 0.080
G18     95.6           32.6                7.8 +/-    1.23      12.9 +/-    1.23  0.050 / 0.120
G27     228.8          13.7                9.6 +/-    2.72      24.5 +/-    2.72  0.030 / 0.030
G31     178.2          32.8               10.8 +/-    0.98      17.9 +/-    0.98  0.030 / 0.040
G32     347.2          72.7                5.9 +/-    0.58       6.1 +/-    0.58  0.020 / 0.020