PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/08-18:43:00
G08     264.0          17.9               12.7 +/-    1.15      29.4 +/-    1.15  0.180 / 0.370
G10     64.1           57.3               15.4 +/-    2.03      17.9 +/-    2.03  0.200 / 0.390
G11     309.9          18.9               11.7 +/-    1.41      26.5 +/-    1.41  0.050 / 0.050
G14     270.3          67.5               14.5 +/-    1.10      15.6 +/-    1.10  0.050 / 0.040
G20     96.6           35.7               15.3 +/-    0.91      24.0 +/-    0.91  0.140 / 0.210
G21     154.2          11.7               16.6 +/-    3.13      44.7 +/-    3.13  0.120 / 0.180
G27     233.1          15.7               13.1 +/-    3.86      32.1 +/-    3.86  0.060 / 0.120
G31     180.4          28.9               16.0 +/-    1.06      28.7 +/-    1.06  0.070 / 0.110
G32     340.1          73.8               14.3 +/-    0.33      14.8 +/-    0.33  0.170 / 0.220