PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/10-14:27:40
G10     245.5          22.9                4.7 +/-    1.12       9.7 +/-    1.12  0.040 / 0.040
G13     59.4           32.5                5.0 +/-    1.54       8.4 +/-    1.54  0.030 / 0.040
G15     101.9          58.2                5.7 +/-    0.96       6.6 +/-    0.96  0.090 / 0.380
G16     303.2          14.8                0.1 +/-    2.05       0.3 +/-    2.05  0.090 / 0.390
G20     262.1          46.8                7.4 +/-    4.30       9.7 +/-    4.30  0.080 / 0.100
G21     330.7          58.1                4.5 +/-    0.43       5.2 +/-    0.43  0.050 / 0.080
G26     276.5          17.3                3.4 +/-    2.14       8.1 +/-    2.14  0.030 / 0.040
G29     161.2          55.6                8.1 +/-    0.50       9.5 +/-    0.50  0.030 / 0.050