PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/11-04:12:30
G10     248.2          25.9               16.3 +/-    1.50      31.1 +/-    1.50  0.040 / 0.050
G13     55.7           30.5               10.0 +/-    2.27      17.3 +/-    2.27  0.040 / 0.050
G15     89.8           57.2               12.0 +/-    1.71      14.0 +/-    1.71  0.090 / 0.240
G16     301.5          14.5               11.2 +/-    2.11      28.2 +/-    2.11  0.130 / 0.120
G20     266.5          49.1               12.5 +/-    4.49      16.0 +/-    4.49  0.090 / 0.160
G21     332.3          58.9               11.1 +/-    0.68      12.7 +/-    0.68  0.090 / 0.140
G26     272.9          16.3               16.1 +/-    1.07      38.7 +/-    1.07  0.030 / 0.040
G29     160.9          49.8               13.6 +/-    0.90      17.2 +/-    0.90  0.030 / 0.040