PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/26-09:58:10
G01     56.8           28.7                3.5 +/-    1.28       6.4 +/-    1.28  0.110 / 0.210
G07     142.5          19.3                4.4 +/-    2.06       9.9 +/-    2.06  0.090 / 0.200
G11     47.8           24.3                4.2 +/-    1.40       8.3 +/-    1.40  0.020 / 0.020
G13     258.9          35.5                7.5 +/-    2.08      11.8 +/-    2.08  0.020 / 0.020
G15     292.2          16.2                5.1 +/-    3.00      12.2 +/-    3.00  0.070 / 0.060
G17     259.5          76.1                6.8 +/-    0.35       7.0 +/-    0.35  0.080 / 0.060
G18     40.6           11.5                2.8 +/-    2.15       7.5 +/-    2.15  0.170 / 0.310
G19     233.9          54.4                6.6 +/-    2.31       7.9 +/-    2.31  0.230 / 0.270
G28     25.7           59.6                5.9 +/-    1.09       6.8 +/-    1.09  0.030 / 0.040
G30     145.5          52.6                7.6 +/-    0.52       9.3 +/-    0.52  0.040 / 0.040