PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/09-21:43:10
G05     52.2           9.9                 8.7 +/-    3.62      24.4 +/-    3.62  0.040 / 0.060
G10     242.4          20.9               13.7 +/-    2.92      29.5 +/-    2.92  0.050 / 0.070
G13     63.3           33.3                9.2 +/-    1.06      15.1 +/-    1.06  0.070 / 0.100
G15     107.7          57.0               10.3 +/-    0.69      12.0 +/-    0.69  0.080 / 0.120
G16     305.8          14.9                8.4 +/-    3.08      21.0 +/-    3.08  0.030 / 0.030
G20     257.8          43.9               11.5 +/-    2.28      15.7 +/-    2.28  0.030 / 0.040
G21     322.1          52.4               10.6 +/-    0.47      13.0 +/-    0.47  0.080 / 0.350
G26     278.2          18.7               10.6 +/-    1.45      24.0 +/-    1.45  0.110 / 0.350
G29     159.3          61.6               11.1 +/-    0.41      12.5 +/-    0.41  0.120 / 0.190