PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/19-14:57:50
G08     317.8          14.1                4.2 +/-    2.18      10.8 +/-    2.18  0.060 / 0.070
G10     314.4          57.1                5.7 +/-    1.48       6.6 +/-    1.48  0.070 / 0.070
G14     213.0          16.1                8.0 +/-    2.94      19.3 +/-    2.94  0.310 / 0.250
G15     45.4           16.5                5.0 +/-    1.90      12.1 +/-    1.90  0.110 / 0.290
G20     21.8           62.7                7.9 +/-    1.53       8.8 +/-    1.53  0.030 / 0.030
G21     119.0          66.3                8.8 +/-    1.03       9.5 +/-    1.03  0.040 / 0.030
G24     89.3           29.5               10.0 +/-    1.08      17.7 +/-    1.08  0.210 / 0.230
G27     290.0          37.6                6.1 +/-    4.64       9.2 +/-    4.64  0.230 / 0.330
G32     213.9          42.6                8.7 +/-    1.15      12.2 +/-    1.15  0.050 / 0.040