PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/07-17:57:30
G10     247.9          26.3               14.4 +/-    0.95      27.3 +/-    0.95  0.040 / 0.060
G13     55.9           30.3               11.3 +/-    1.16      19.7 +/-    1.16  0.030 / 0.060
G15     91.5           57.6               12.6 +/-    0.78      14.7 +/-    0.78  0.050 / 0.180
G16     298.2          16.0               10.3 +/-    2.50      25.1 +/-    2.50  0.060 / 0.140
G20     267.3          50.2               12.3 +/-    1.29      15.5 +/-    1.29  0.150 / 0.730
G21     330.0          57.3               10.6 +/-    0.68      12.3 +/-    0.68  0.140 / 0.670
G26     271.1          16.6               13.2 +/-    2.00      31.7 +/-    2.00  0.030 / 0.040
G29     162.7          54.7               15.0 +/-    0.81      18.0 +/-    0.81  0.030 / 0.040