PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/12-16:27:30
G08     316.2          15.5                4.3 +/-    2.38      10.6 +/-    2.38  0.080 / 0.100
G10     314.3          56.7                6.8 +/-    1.66       8.0 +/-    1.66  0.080 / 0.110
G14     213.1          21.7                8.1 +/-    2.25      17.0 +/-    2.25  0.030 / 0.030
G15     45.7           20.3                5.0 +/-    2.25      11.0 +/-    2.25  0.040 / 0.040
G20     16.8           63.7                7.3 +/-    0.82       8.0 +/-    0.82  0.080 / 0.050
G21     122.2          63.3                8.1 +/-    0.28       9.0 +/-    0.28  0.050 / 0.040
G24     81.1           28.1                7.0 +/-    1.65      12.8 +/-    1.65  0.060 / 0.050
G27     291.1          36.1                8.8 +/-    1.77      13.6 +/-    1.77  0.050 / 0.060
G32     215.7          41.3               10.1 +/-    1.22      14.4 +/-    1.22  0.170 / 0.180