PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/07-13:42:30
G01     320.8          12.0               -2.5 +/-   21.28      -6.6 +/-   21.28  0.110 / 0.210
G08     267.1          16.2                6.8 +/-    1.56      16.4 +/-    1.56  0.120 / 0.140
G10     67.8           57.1                5.6 +/-    0.52       6.5 +/-    0.52  0.040 / 0.040
G11     310.9          17.2                3.5 +/-    1.15       8.3 +/-    1.15  0.030 / 0.040
G14     273.0          66.5                5.0 +/-    0.56       5.4 +/-    0.56  0.240 / 0.430
G21     154.7          10.2                5.9 +/-    4.19      16.3 +/-    4.19  0.140 / 0.440
G27     228.2          13.0                3.4 +/-    2.06       9.0 +/-    2.06  0.070 / 0.090
G31     176.7          35.5                6.1 +/-    1.14       9.5 +/-    1.14  0.060 / 0.060
G32     354.4          71.6                3.9 +/-    0.53       4.1 +/-    0.53  0.340 / 0.300