PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/18-22:58:10
G08     276.7          20.3                9.3 +/-    3.10      20.3 +/-    3.10  0.090 / 0.170
G10     51.0           59.4                8.6 +/-    1.43       9.9 +/-    1.43  0.130 / 0.210
G14     250.6          59.6                8.8 +/-    0.90      10.1 +/-    0.90  0.040 / 0.060
G18     315.4          26.7                6.6 +/-    1.84      12.4 +/-    1.84  0.040 / 0.070
G20     89.5           39.9                8.6 +/-    0.85      12.5 +/-    0.85  0.130 / 0.250
G21     154.0          22.7               10.5 +/-    1.06      21.7 +/-    1.06  0.130 / 0.250
G24     43.5           15.5                6.7 +/-    1.92      16.5 +/-    1.92  0.210 / 0.320
G27     237.0          20.8               10.4 +/-    1.83      22.5 +/-    1.83  0.220 / 0.360
G31     178.6          24.6               10.6 +/-    2.90      20.9 +/-    2.90  0.130 / 0.140
G32     313.7          76.5                8.3 +/-    0.37       8.5 +/-    0.37  0.160 / 0.160