PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/29-16:12:50
G01     320.8          11.5               -4.9 +/-   31.50     -13.2 +/-   31.50  0.170 / 0.420
G08     266.0          16.6                8.1 +/-    1.61      19.4 +/-    1.61  0.130 / 0.310
G10     66.6           57.4                6.9 +/-    0.86       8.0 +/-    0.86  0.040 / 0.040
G11     310.7          17.5                6.1 +/-    1.65      14.2 +/-    1.65  0.030 / 0.040
G14     273.4          67.1                7.6 +/-    0.25       8.2 +/-    0.25  0.260 / 0.370
G27     228.4          13.3                6.7 +/-    3.15      17.3 +/-    3.15  0.350 / 0.430
G31     177.7          33.9                9.3 +/-    0.97      15.1 +/-    0.97  0.050 / 0.080
G32     350.3          72.2                6.9 +/-    0.45       7.2 +/-    0.45  0.060 / 0.080