PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/15-22:58:00
G01     288.8          40.5                8.1 +/-    1.08      11.7 +/-    1.08  0.050 / 0.090
G03     312.3          17.3                7.0 +/-    2.35      16.5 +/-    2.35  0.050 / 0.090
G10     120.8          28.2               10.7 +/-    1.54      19.4 +/-    1.54  0.030 / 0.030
G11     263.3          26.0               11.3 +/-    2.13      21.5 +/-    2.13  0.030 / 0.030
G14     27.6           57.4                7.9 +/-    0.87       9.2 +/-    0.87  0.070 / 0.110
G22     313.8          38.7                7.7 +/-    2.33      11.4 +/-    2.33  0.050 / 0.130
G25     64.3           18.6                9.3 +/-    0.84      21.1 +/-    0.84  0.050 / 0.080
G26     158.5          12.8               12.7 +/-    2.02      33.3 +/-    2.02  0.040 / 0.070
G31     141.7          79.4               10.3 +/-    1.06      10.5 +/-    1.06  0.040 / 0.050
G32     51.0           42.6                7.9 +/-    1.10      11.0 +/-    1.10  0.040 / 0.050