PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/21-17:58:10
G08     314.6          16.7                8.8 +/-    3.71      21.1 +/-    3.71  0.190 / 0.190
G10     318.1          57.5                9.1 +/-    1.02      10.5 +/-    1.02  0.170 / 0.280
G14     214.1          23.6               10.3 +/-    1.13      20.9 +/-    1.13  0.070 / 0.110
G15     45.9           19.1                7.5 +/-    1.90      16.9 +/-    1.90  0.080 / 0.100
G20     21.6           63.1               10.0 +/-    1.45      11.0 +/-    1.45  0.040 / 0.030
G21     125.1          62.3               11.4 +/-    0.70      12.7 +/-    0.70  0.040 / 0.040
G24     78.8           28.4                8.9 +/-    0.81      16.1 +/-    0.81  0.060 / 0.060
G27     287.8          36.7               10.8 +/-    0.71      16.7 +/-    0.71  0.050 / 0.060
G32     217.0          44.1               11.4 +/-    1.14      15.6 +/-    1.14  0.220 / 0.260