PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/14-10:43:10
G10     294.8          50.7                3.6 +/-    2.90       4.5 +/-    2.90  0.050 / 0.070
G15     46.1           28.2                3.1 +/-    1.41       5.6 +/-    1.41  0.050 / 0.080
G20     66.4           27.6                3.9 +/-    2.71       7.2 +/-    2.71  0.040 / 0.040
G21     94.2           73.9                4.8 +/-    0.35       5.0 +/-    0.35  0.040 / 0.040
G24     99.7           26.0                6.7 +/-    1.45      12.9 +/-    1.45  0.080 / 0.130
G27     301.1          34.1                4.6 +/-    2.80       7.3 +/-    2.80  0.050 / 0.120
G32     209.9          31.7                4.2 +/-    0.65       7.1 +/-    0.65  0.080 / 0.120