PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/14-17:27:40
G08     314.3          16.2                5.9 +/-    2.25      14.3 +/-    2.25  0.060 / 0.070
G10     320.0          57.7                6.4 +/-    0.66       7.4 +/-    0.66  0.080 / 0.060
G14     215.4          25.5                9.6 +/-    2.73      18.6 +/-    2.73  0.120 / 0.270
G15     45.9           14.3                6.8 +/-    2.32      17.1 +/-    2.32  0.340 / 0.320
G18     31.9           60.8                7.6 +/-    1.27       8.6 +/-    1.27  0.080 / 0.050
G20     81.1           11.1                7.7 +/-    2.06      21.0 +/-    2.06  0.060 / 0.080
G24     82.1           30.3                7.0 +/-    1.10      12.3 +/-    1.10  0.160 / 0.190
G27     280.9          38.1                8.1 +/-    2.09      12.2 +/-    2.09  0.170 / 0.190
G32     219.0          45.6                9.2 +/-    1.16      12.3 +/-    1.16  0.190 / 0.180