PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/17-18:57:50
G08     271.8          20.1               10.2 +/-    1.78      22.4 +/-    1.78  0.110 / 0.160
G10     55.3           58.4               26.3 +/-    0.41      30.2 +/-    0.41  0.120 / 0.190
G11     316.5          11.5                6.3 +/-   16.69      17.0 +/-   16.69  0.040 / 0.070
G14     252.1          58.8               11.0 +/-    0.65      12.7 +/-    0.65  0.040 / 0.060
G20     92.6           37.1                9.3 +/-    0.63      14.2 +/-    0.63  0.030 / 0.030
G21     154.3          19.7                9.6 +/-    2.27      21.2 +/-    2.27  0.030 / 0.040
G24     42.5           14.1                7.7 +/-    2.87      19.6 +/-    2.87  0.100 / 0.280
G27     235.0          19.4               11.4 +/-    1.03      25.4 +/-    1.03  0.100 / 0.370
G31     179.0          25.7               10.6 +/-    1.78      20.3 +/-    1.78  0.140 / 0.240
G32     327.9          76.2               10.3 +/-    0.77      10.6 +/-    0.77  0.130 / 0.240