PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/14-14:27:30
G10     280.1          46.4                6.2 +/-    1.08       8.2 +/-    1.08  0.150 / 0.150
G15     49.3           36.6                5.5 +/-    0.88       8.5 +/-    0.88  0.090 / 0.120
G20     327.9          65.1                5.7 +/-    0.40       6.2 +/-    0.40  0.040 / 0.060
G21     42.5           76.3                6.4 +/-    0.82       6.5 +/-    0.82  0.060 / 0.050
G24     113.2          20.1                7.7 +/-    1.07      16.9 +/-    1.07  0.110 / 0.160
G27     312.9          26.7                4.7 +/-    1.68       8.9 +/-    1.68  0.110 / 0.200
G29     168.2          21.7                6.7 +/-    1.17      14.2 +/-    1.17  0.040 / 0.030
G32     205.2          20.2                5.9 +/-    2.29      12.9 +/-    2.29  0.040 / 0.030