PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/22-06:57:30
G10     259.6          33.2                4.7 +/-    1.92       7.7 +/-    1.92  0.030 / 0.040
G13     46.1           24.0                4.1 +/-    2.08       8.2 +/-    2.08  0.040 / 0.040
G15     67.7           53.0                4.6 +/-    0.65       5.6 +/-    0.65  0.120 / 0.290
G16     285.6          14.0                3.4 +/-    1.66       8.6 +/-    1.66  0.140 / 0.370
G20     9.9            66.8                3.6 +/-    0.31       3.9 +/-    0.31  0.090 / 0.240
G21     348.2          67.2                4.6 +/-    0.75       4.9 +/-    0.75  0.100 / 0.220
G24     126.2          9.9               -13.2 +/-   19.53     -36.9 +/-   19.53  0.210 / 0.330
G26     257.7          11.2                5.3 +/-    1.59      14.3 +/-    1.59  0.170 / 0.300
G27     321.1          13.6                1.3 +/-    1.74       3.4 +/-    1.74  0.040 / 0.040
G29     167.1          39.0                5.2 +/-    0.96       7.7 +/-    0.96  0.040 / 0.040