PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/10-13:43:10
G08     311.1          17.6                3.8 +/-    2.67       8.9 +/-    2.67  0.060 / 0.060
G10     331.4          59.8                1.7 +/-    0.31       1.9 +/-    0.31  0.050 / 0.070
G14     218.5          29.7                4.9 +/-    2.18       8.6 +/-    2.18  0.030 / 0.040
G20     84.6           9.6                 3.9 +/-    9.61      11.0 +/-    9.61  0.030 / 0.040
G21     134.4          54.2                4.2 +/-    0.79       5.0 +/-    0.79  0.390 / 0.460
G24     74.6           30.4                2.9 +/-    1.07       5.0 +/-    1.07  0.190 / 0.410
G27     273.3          37.5                4.8 +/-    1.79       7.2 +/-    1.79  0.150 / 0.200
G32     223.7          53.1                5.1 +/-    1.83       6.2 +/-    1.83  0.250 / 0.260