PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/08-17:58:00
G01     319.7          17.5                8.6 +/-    2.71      20.2 +/-    2.71  0.200 / 0.350
G08     259.9          15.3                8.3 +/-    3.91      20.4 +/-    3.91  0.220 / 0.330
G10     75.6           53.1                9.7 +/-    0.98      11.8 +/-    0.98  0.220 / 0.190
G11     309.2          18.1                6.8 +/-    1.95      15.7 +/-    1.95  0.110 / 0.200
G14     275.8          66.6               10.3 +/-    1.45      11.1 +/-    1.45  0.040 / 0.050
G20     103.8          28.5               11.4 +/-    1.20      20.6 +/-    1.20  0.040 / 0.050
G27     226.3          11.5               10.4 +/-    1.48      28.1 +/-    1.48  0.130 / 0.320
G31     177.0          37.4               10.7 +/-    1.22      16.2 +/-    1.22  0.140 / 0.300
G32     4.5            69.2                8.9 +/-    0.39       9.5 +/-    0.39  0.050 / 0.070