PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/08-22:43:00
G13     42.8           19.2                8.3 +/-    2.96      18.5 +/-    2.96  0.200 / 0.300
G15     62.1           50.8                9.1 +/-    1.31      11.4 +/-    1.31  0.250 / 0.250
G16     281.7          13.3                8.4 +/-    3.05      21.7 +/-    3.05  0.040 / 0.050
G20     293.0          59.0               10.0 +/-    1.27      11.5 +/-    1.27  0.040 / 0.040
G21     355.4          69.5                9.8 +/-    0.58      10.4 +/-    0.58  0.110 / 0.380
G24     123.7          12.6               10.5 +/-    6.12      27.6 +/-    6.12  0.130 / 0.350
G27     320.1          16.2                7.8 +/-    1.98      18.8 +/-    1.98  0.100 / 0.420
G29     166.6          34.0               11.3 +/-    1.25      18.2 +/-    1.25  0.140 / 0.210