PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/01-01:13:10
G10     260.5          35.4               13.9 +/-    1.50      21.9 +/-    1.50  0.120 / 0.200
G13     45.0           22.1                9.5 +/-    2.43      19.8 +/-    2.43  0.120 / 0.230
G15     66.5           52.5               10.9 +/-    0.70      13.3 +/-    0.70  0.070 / 0.080
G16     286.5          14.0                8.3 +/-    1.13      21.2 +/-    1.13  0.130 / 0.090
G20     285.9          56.8               12.5 +/-    1.81      14.6 +/-    1.81  0.040 / 0.040
G21     349.2          67.2               12.6 +/-    0.40      13.5 +/-    0.40  0.040 / 0.040
G24     126.2          10.4                2.4 +/-   40.49       6.6 +/-   40.49  0.070 / 0.260
G26     259.3          10.9               10.3 +/-    4.44      28.3 +/-    4.44  0.130 / 0.310
G27     321.5          12.8                6.9 +/-    3.07      18.2 +/-    3.07  0.030 / 0.050
G29     165.5          37.1               12.7 +/-    0.77      19.4 +/-    0.77  0.030 / 0.040