PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/04-22:12:40
G10     274.9          42.7               10.9 +/-    1.49      15.2 +/-    1.49  0.110 / 0.120
G13     39.1           12.6                6.8 +/-    2.46      18.0 +/-    2.46  0.080 / 0.150
G15     55.2           47.2                8.3 +/-    0.78      10.8 +/-    0.78  0.090 / 0.210
G20     270.6          26.9                3.9 +/-    0.91       7.4 +/-    0.91  0.090 / 0.170
G21     18.8           75.3                8.4 +/-    0.75       8.6 +/-    0.75  0.070 / 0.040
G24     112.5          18.3               10.0 +/-    1.27      22.9 +/-    1.27  0.050 / 0.040
G27     315.2          23.8                8.2 +/-    1.30      16.4 +/-    1.30  0.110 / 0.240
G29     168.9          25.2               11.8 +/-    2.59      22.9 +/-    2.59  0.120 / 0.330
G32     204.9          17.1               14.7 +/-    1.85      34.7 +/-    1.85  0.040 / 0.040