PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/12-12:13:10
G10     275.6          42.5                5.8 +/-    1.23       8.1 +/-    1.23  0.080 / 0.110
G13     39.2           12.9                0.7 +/-    2.92       1.8 +/-    2.92  0.200 / 0.130
G15     51.7           41.0                2.7 +/-    0.78       3.9 +/-    0.78  0.030 / 0.030
G20     57.3           34.0                2.9 +/-    2.12       4.7 +/-    2.12  0.030 / 0.030
G21     37.8           76.0                3.9 +/-    0.56       4.0 +/-    0.56  0.080 / 0.090
G24     114.4          18.6                5.3 +/-    1.66      12.1 +/-    1.66  0.060 / 0.090
G27     313.7          25.6                3.5 +/-    2.46       6.8 +/-    2.46  0.150 / 0.460
G29     167.8          21.4                3.8 +/-    0.99       8.1 +/-    0.99  0.150 / 0.370
G32     205.6          16.9                5.3 +/-    2.24      12.6 +/-    2.24  0.050 / 0.060