PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/07-23:57:50
G08     271.0          18.2                7.9 +/-    2.01      18.2 +/-    2.01  0.130 / 0.250
G10     62.8           57.0                9.7 +/-    0.82      11.3 +/-    0.82  0.190 / 0.320
G14     262.5          64.3                9.4 +/-    0.77      10.4 +/-    0.77  0.040 / 0.050
G18     312.7          32.2                7.4 +/-    1.65      12.4 +/-    1.65  0.040 / 0.050
G20     95.8           36.0                9.9 +/-    0.81      15.4 +/-    0.81  0.100 / 0.130
G21     155.3          16.6               10.7 +/-    1.49      25.6 +/-    1.49  0.100 / 0.140
G24     40.4           10.9                7.4 +/-    2.78      20.2 +/-    2.78  0.090 / 0.180
G27     232.1          16.6               10.3 +/-    2.67      24.7 +/-    2.67  0.150 / 0.220
G31     177.1          31.1               11.2 +/-    1.55      19.1 +/-    1.55  0.030 / 0.030
G32     338.6          74.5                8.0 +/-    0.36       8.3 +/-    0.36  0.020 / 0.030