PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/23-22:57:40
G08     267.8          17.4               10.8 +/-    1.33      25.3 +/-    1.33  0.250 / 0.510
G10     67.2           55.8                9.2 +/-    0.82      10.9 +/-    0.82  0.150 / 0.340
G11     311.4          17.0               -6.1 +/-   10.80     -14.4 +/-   10.80  0.040 / 0.050
G14     267.0          65.3               10.3 +/-    1.18      11.2 +/-    1.18  0.040 / 0.050
G18     311.3          34.2                7.1 +/-    0.88      11.5 +/-    0.88  0.080 / 0.130
G20     98.4           33.9                9.6 +/-    1.20      15.6 +/-    1.20  0.070 / 0.120
G21     155.7          14.1                9.7 +/-    1.97      24.6 +/-    1.97  0.030 / 0.020
G27     230.2          14.9               12.8 +/-    1.71      31.9 +/-    1.71  0.030 / 0.020
G31     176.7          33.6               10.1 +/-    2.51      16.5 +/-    2.51  0.210 / 0.280
G32     348.2          73.1                8.4 +/-    0.18       8.7 +/-    0.18  0.170 / 0.390