PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/28-23:42:50
G10     272.0          42.2               11.4 +/-    0.96      16.0 +/-    0.96  0.140 / 0.190
G13     39.8           14.1                6.5 +/-    2.67      16.5 +/-    2.67  0.240 / 0.200
G15     55.0           45.4                8.9 +/-    0.90      11.9 +/-    0.90  0.040 / 0.040
G16     275.7          11.1                7.5 +/-    2.47      20.4 +/-    2.47  0.040 / 0.040
G20     305.4          61.6               10.5 +/-    0.68      11.8 +/-    0.68  0.130 / 0.320
G21     12.0           73.7               10.7 +/-    0.68      11.1 +/-    0.68  0.190 / 0.430
G24     117.9          16.5               10.6 +/-    1.76      25.4 +/-    1.76  0.040 / 0.060
G27     317.1          21.4                8.0 +/-    2.43      17.1 +/-    2.43  0.040 / 0.060
G29     167.3          26.6               10.8 +/-    1.35      20.3 +/-    1.35  0.170 / 0.390
G32     204.9          11.9                4.8 +/-   38.31      13.0 +/-   38.31  0.180 / 0.330