PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/12-18:43:10
G02     68.2           27.7                7.9 +/-    0.64      14.6 +/-    0.64  0.030 / 0.050
G05     47.4           51.4                8.9 +/-    0.64      11.1 +/-    0.64  0.030 / 0.050
G12     179.9          16.8               11.5 +/-    1.74      27.3 +/-    1.74  0.060 / 0.080
G13     116.6          23.9               12.3 +/-    1.32      24.7 +/-    1.32  0.060 / 0.100
G15     161.5          20.2               14.3 +/-    1.50      31.3 +/-    1.50  0.050 / 0.130
G21     282.3          25.2               12.3 +/-    0.92      23.8 +/-    0.92  0.050 / 0.140
G25     218.7          40.4               11.3 +/-    1.01      16.4 +/-    1.01  0.080 / 0.230
G26     318.7          11.0               -6.7 +/-   40.46     -18.3 +/-   40.46  0.090 / 0.270
G29     336.8          67.0                9.8 +/-    1.17      10.6 +/-    1.17  0.100 / 0.260