PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/10-15:58:00
G10     257.6          31.5                9.3 +/-    0.83      15.7 +/-    0.83  0.100 / 0.290
G13     47.9           26.1                5.6 +/-    1.73      10.7 +/-    1.73  0.110 / 0.220
G15     70.0           53.5                8.0 +/-    0.35       9.6 +/-    0.35  0.060 / 0.060
G16     292.3          13.2                5.2 +/-    1.66      13.6 +/-    1.66  0.060 / 0.060
G18     285.1          61.9                8.7 +/-    0.99       9.7 +/-    0.99  0.220 / 0.340
G20     46.5           44.4                6.6 +/-    0.57       9.0 +/-    0.57  0.340 / 0.410
G21     356.6          68.8                7.8 +/-    0.60       8.3 +/-    0.60  0.130 / 0.140
G26     263.1          12.1                7.9 +/-    2.47      21.1 +/-    2.47  0.160 / 0.170
G27     321.3          12.7                4.3 +/-    3.14      11.3 +/-    3.14  0.040 / 0.040
G29     164.6          36.7                9.3 +/-    0.44      14.4 +/-    0.44  0.050 / 0.040