PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/07-13:12:50
G05     48.5           18.2                2.5 +/-    0.62       5.7 +/-    0.62  0.060 / 0.130
G10     236.2          14.8                4.3 +/-    2.13      10.6 +/-    2.13  0.060 / 0.130
G13     73.8           35.0                5.5 +/-    0.70       8.8 +/-    0.70  0.030 / 0.030
G15     117.4          53.1                7.5 +/-    0.57       9.1 +/-    0.57  0.020 / 0.030
G16     313.0          13.1                3.3 +/-    1.48       8.6 +/-    1.48  0.040 / 0.060
G20     250.2          40.6                7.7 +/-    1.06      11.2 +/-    1.06  0.040 / 0.060
G21     315.1          47.8                4.1 +/-    1.10       5.3 +/-    1.10  0.230 / 0.370
G25     198.9          11.0                4.3 +/-    1.85      11.8 +/-    1.85  0.230 / 0.370
G26     287.6          19.9                4.7 +/-    1.07      10.3 +/-    1.07  0.160 / 0.290
G29     153.6          73.2                9.9 +/-    1.33      10.3 +/-    1.33  0.120 / 0.370