PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/11-04:43:10
G10     261.0          35.5               12.1 +/-    2.29      19.0 +/-    2.29  0.110 / 0.100
G13     44.8           21.9                5.6 +/-    1.46      11.8 +/-    1.46  0.090 / 0.100
G15     65.3           51.8                9.5 +/-    0.44      11.7 +/-    0.44  0.040 / 0.050
G16     287.9          13.5               12.5 +/-    1.42      32.2 +/-    1.42  0.040 / 0.040
G20     287.1          57.5               10.7 +/-    1.18      12.4 +/-    1.18  0.140 / 0.250
G21     353.1          68.3                9.2 +/-    2.06       9.8 +/-    2.06  0.120 / 0.210
G24     124.9          10.8               -6.1 +/-   36.59     -16.7 +/-   36.59  0.080 / 0.270
G26     260.2          10.7               13.0 +/-    1.98      35.7 +/-    1.98  0.090 / 0.300
G27     321.5          12.8                9.2 +/-    2.84      24.2 +/-    2.84  0.040 / 0.050
G29     164.7          34.6                9.6 +/-    2.93      15.3 +/-    2.93  0.030 / 0.040