PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/14-12:57:50
G05     50.8           12.9                2.6 +/-    0.72       6.9 +/-    0.72  0.070 / 0.130
G10     240.4          19.4                4.2 +/-    1.25       9.4 +/-    1.25  0.070 / 0.120
G13     66.3           33.9                5.3 +/-    0.56       8.6 +/-    0.56  0.120 / 0.460
G15     105.8          55.5                5.9 +/-    0.39       6.9 +/-    0.39  0.120 / 0.530
G16     307.5          14.8                1.1 +/-    2.50       2.7 +/-    2.50  0.050 / 0.070
G20     256.7          45.3                5.0 +/-    1.18       6.7 +/-    1.18  0.040 / 0.070
G21     321.5          52.0                5.2 +/-    1.24       6.4 +/-    1.24  0.020 / 0.040
G26     281.5          19.0                2.1 +/-    1.45       4.7 +/-    1.45  0.030 / 0.040
G29     158.2          66.1                7.6 +/-    0.33       8.2 +/-    0.33  0.050 / 0.090