PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/28-10:58:10
G10     270.8          40.0                5.0 +/-    1.16       7.2 +/-    1.16  0.080 / 0.170
G13     40.7           16.2                2.3 +/-    2.23       5.5 +/-    2.23  0.080 / 0.150
G15     54.8           44.6                2.0 +/-    0.66       2.8 +/-    0.66  0.050 / 0.080
G16     276.8          10.5                3.3 +/-    3.15       9.1 +/-    3.15  0.070 / 0.080
G20     53.7           37.9                3.2 +/-    0.64       4.9 +/-    0.64  0.040 / 0.040
G21     19.1           74.4                4.0 +/-    0.79       4.2 +/-    0.79  0.040 / 0.040
G24     118.0          16.1                5.4 +/-    1.42      13.0 +/-    1.42  0.090 / 0.500
G27     316.4          22.4                1.7 +/-    2.19       3.5 +/-    2.19  0.090 / 0.580
G29     167.8          26.3                4.2 +/-    1.11       8.1 +/-    1.11  0.070 / 0.060
G32     204.7          13.2                4.5 +/-    0.80      11.7 +/-    0.80  0.060 / 0.080