PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/26-19:28:10
G10     267.9          40.1               10.8 +/-    1.43      15.7 +/-    1.43  0.090 / 0.060
G13     41.3           16.9                7.4 +/-    2.98      17.5 +/-    2.98  0.080 / 0.060
G15     58.5           48.4                8.1 +/-    1.16      10.5 +/-    1.16  0.110 / 0.390
G16     278.1          12.6                9.6 +/-    3.24      25.2 +/-    3.24  0.250 / 0.290
G20     300.8          61.2                9.3 +/-    1.06      10.5 +/-    1.06  0.040 / 0.050
G21     2.2            71.4               10.1 +/-    0.62      10.6 +/-    0.62  0.040 / 0.050
G24     121.9          14.3               10.5 +/-    1.46      26.6 +/-    1.46  0.210 / 0.420
G27     318.8          18.9                9.5 +/-    2.07      21.4 +/-    2.07  0.140 / 0.510
G29     167.4          31.7               10.5 +/-    1.67      17.8 +/-    1.67  0.110 / 0.140