PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/19-22:58:00
G08     275.2          19.9                9.0 +/-    1.20      19.9 +/-    1.20  0.100 / 0.220
G10     53.7           58.9                9.6 +/-    0.63      11.0 +/-    0.63  0.130 / 0.210
G14     252.9          60.6                9.9 +/-    0.60      11.2 +/-    0.60  0.040 / 0.060
G18     314.9          27.9                6.7 +/-    1.45      12.3 +/-    1.45  0.050 / 0.060
G20     91.0           39.0                9.2 +/-    1.04      13.6 +/-    1.04  0.140 / 0.180
G21     154.3          21.3               10.8 +/-    2.55      23.1 +/-    2.55  0.070 / 0.140
G24     42.7           14.6                6.9 +/-    3.15      17.4 +/-    3.15  0.040 / 0.020
G27     235.9          19.9               11.2 +/-    4.71      24.7 +/-    4.71  0.030 / 0.020
G31     178.3          26.0               11.8 +/-    1.86      22.4 +/-    1.86  0.400 / 0.250
G32     320.1          76.3                9.7 +/-    0.38      10.0 +/-    0.38  0.240 / 0.320