PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/31-15:12:40
G08     315.3          16.2                5.2 +/-    2.91      12.5 +/-    2.91  0.040 / 0.050
G10     316.6          57.3                4.0 +/-    0.73       4.6 +/-    0.73  0.040 / 0.040
G14     213.6          23.0                7.7 +/-    2.55      15.8 +/-    2.55  0.060 / 0.140
G15     45.7           18.6                2.9 +/-    1.28       6.7 +/-    1.28  0.060 / 0.110
G20     19.6           63.4                4.0 +/-    0.48       4.5 +/-    0.48  0.120 / 0.250
G21     124.3          61.2                7.3 +/-    0.77       8.2 +/-    0.77  0.090 / 0.310
G24     80.3           28.4                5.7 +/-    0.64      10.3 +/-    0.64  0.040 / 0.040
G27     289.9          36.2                6.1 +/-    1.10       9.4 +/-    1.10  0.040 / 0.040
G32     216.5          41.9                6.9 +/-    0.86       9.8 +/-    0.86  0.050 / 0.070