PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/10-20:28:00
G10     264.6          38.2               11.1 +/-    1.77      16.6 +/-    1.77  0.150 / 0.420
G13     42.7           19.1                9.2 +/-    2.24      20.6 +/-    2.24  0.120 / 0.370
G15     63.1           51.7               10.6 +/-    0.85      13.1 +/-    0.85  0.040 / 0.040
G16     281.1          13.4                8.2 +/-    2.92      21.2 +/-    2.92  0.040 / 0.030
G20     294.4          59.6               10.0 +/-    0.61      11.4 +/-    0.61  0.100 / 0.450
G21     355.5          69.5               11.9 +/-    0.88      12.6 +/-    0.88  0.190 / 0.270
G24     124.1          12.6               12.1 +/-    2.54      32.0 +/-    2.54  0.030 / 0.040
G27     320.0          16.5                9.5 +/-    2.07      22.9 +/-    2.07  0.040 / 0.040
G29     166.9          34.6               12.4 +/-    1.11      19.9 +/-    1.11  0.110 / 0.100