PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/22-21:57:40
G10     270.7          41.6               11.6 +/-    1.73      16.4 +/-    1.73  0.040 / 0.050
G13     40.2           15.0                8.3 +/-    3.42      20.7 +/-    3.42  0.040 / 0.050
G15     56.5           47.0                9.5 +/-    0.86      12.5 +/-    0.86  0.190 / 0.810
G16     276.3          11.6                8.9 +/-    7.37      24.0 +/-    7.37  0.230 / 0.840
G20     304.3          61.6               11.1 +/-    1.05      12.5 +/-    1.05  0.130 / 0.250
G21     8.2            73.0               11.1 +/-    0.96      11.5 +/-    0.96  0.130 / 0.230
G24     119.3          15.8               11.9 +/-    1.54      28.9 +/-    1.54  0.090 / 0.250
G27     317.7          20.7                9.2 +/-    3.11      19.8 +/-    3.11  0.090 / 0.240
G29     167.4          28.4               13.0 +/-    1.26      23.5 +/-    1.26  0.140 / 0.470
G32     204.5          11.4                3.0 +/-   44.06       8.2 +/-   44.06  0.110 / 0.420