PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/10-07:57:40
G10     264.5          36.4                8.3 +/-    1.01      12.9 +/-    1.01  0.140 / 0.290
G13     43.3           20.5                4.2 +/-    2.58       9.1 +/-    2.58  0.220 / 0.410
G15     61.1           49.6                5.0 +/-    0.75       6.3 +/-    0.75  0.250 / 0.170
G16     281.2          12.7                5.2 +/-    0.90      13.8 +/-    0.90  0.120 / 0.170
G20     31.0           58.8                6.0 +/-    0.88       6.9 +/-    0.88  0.050 / 0.040
G21     358.5          70.6                6.4 +/-    1.09       6.7 +/-    1.09  0.040 / 0.040
G24     122.5          12.8                7.0 +/-    4.57      18.4 +/-    4.57  0.040 / 0.040
G27     319.3          17.6                6.0 +/-    2.11      14.1 +/-    2.11  0.040 / 0.040
G29     167.7          33.5                7.8 +/-    1.16      12.7 +/-    1.16  0.170 / 0.250