PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/12-00:42:50
G10     267.1          39.5                9.8 +/-    1.27      14.4 +/-    1.27  0.110 / 0.120
G13     41.6           17.5                8.1 +/-    2.82      19.0 +/-    2.82  0.100 / 0.130
G15     58.8           48.4                9.3 +/-    0.83      12.0 +/-    0.83  0.100 / 0.090
G16     280.2          12.5                7.8 +/-    1.78      20.5 +/-    1.78  0.120 / 0.100
G20     296.9          59.8                9.4 +/-    0.75      10.7 +/-    0.75  0.050 / 0.040
G21     1.3            71.2                9.9 +/-    0.66      10.4 +/-    0.66  0.050 / 0.040
G24     121.3          14.0               11.2 +/-    1.67      28.5 +/-    1.67  0.120 / 0.280
G27     319.2          18.0                7.9 +/-    1.71      18.2 +/-    1.71  0.220 / 0.370
G29     166.6          30.7               10.8 +/-    1.24      18.7 +/-    1.24  0.030 / 0.040