PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/10-11:57:50
G10     263.7          35.7                6.5 +/-    1.37      10.1 +/-    1.37  0.170 / 0.210
G13     43.8           21.3                1.8 +/-    2.01       3.9 +/-    2.01  0.260 / 0.130
G15     61.3           49.5                3.4 +/-    0.83       4.3 +/-    0.83  0.040 / 0.040
G16     283.6          12.5                5.0 +/-    1.90      13.2 +/-    1.90  0.040 / 0.030
G20     49.3           42.1                2.2 +/-    1.10       3.2 +/-    1.10  0.070 / 0.080
G21     2.9            71.2                3.4 +/-    0.78       3.5 +/-    0.78  0.050 / 0.060
G24     123.6          12.2                3.5 +/-    2.54       9.3 +/-    2.54  0.200 / 0.410
G27     319.4          17.4                4.3 +/-    1.35      10.1 +/-    1.35  0.210 / 0.570
G29     166.8          32.6                3.8 +/-    1.36       6.2 +/-    1.36  0.150 / 0.080