PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/26-23:58:00
G10     275.7          44.0               11.3 +/-    0.86      15.4 +/-    0.86  0.100 / 0.120
G13     38.7           11.7                9.1 +/-    3.81      24.4 +/-    3.81  0.110 / 0.110
G15     52.7           42.8                8.1 +/-    0.99      11.3 +/-    0.99  0.050 / 0.030
G20     311.5          62.6                9.8 +/-    0.85      10.9 +/-    0.85  0.040 / 0.030
G21     21.9           75.3               10.5 +/-    0.61      10.8 +/-    0.61  0.530 / 0.430
G24     115.2          18.3                9.9 +/-    2.11      22.8 +/-    2.11  0.510 / 0.670
G27     315.4          23.7                7.9 +/-    1.91      15.9 +/-    1.91  0.060 / 0.050
G29     167.5          23.5               13.1 +/-    0.87      26.5 +/-    0.87  0.060 / 0.060
G32     205.4          14.6               13.9 +/-    5.52      35.0 +/-    5.52  0.370 / 0.280