PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/06-11:58:00
G10     256.5          30.8                7.4 +/-    2.02      12.7 +/-    2.02  0.060 / 0.060
G13     48.5           26.5                2.2 +/-    0.94       4.2 +/-    0.94  0.060 / 0.060
G15     71.5           53.9                2.5 +/-    0.41       3.0 +/-    0.41  0.170 / 0.310
G16     290.9          14.1                5.0 +/-    1.44      12.7 +/-    1.44  0.150 / 0.240
G20     43.8           47.8                2.7 +/-    0.48       3.5 +/-    0.48  0.120 / 0.320
G21     348.2          66.7                2.5 +/-    0.35       2.7 +/-    0.35  0.090 / 0.300
G26     262.1          12.7                6.8 +/-    1.20      18.0 +/-    1.20  0.050 / 0.050
G27     321.7          11.5               -2.7 +/-   23.31      -7.2 +/-   23.31  0.050 / 0.050
G29     165.5          40.4                4.8 +/-    0.60       7.0 +/-    0.60  0.070 / 0.110