PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/26-18:57:40
G10     253.8          30.9               11.3 +/-    2.12      19.5 +/-    2.12  0.050 / 0.040
G13     49.9           26.6                7.1 +/-    2.99      13.3 +/-    2.99  0.040 / 0.050
G15     79.0           56.5                8.4 +/-    1.26       9.8 +/-    1.26  0.150 / 0.170
G16     291.6          15.7                8.2 +/-    2.02      20.0 +/-    2.02  0.110 / 0.220
G20     276.5          54.1               10.0 +/-    2.99      12.1 +/-    2.99  0.040 / 0.050
G21     338.0          61.9                9.4 +/-    0.56      10.5 +/-    0.56  0.040 / 0.050
G26     264.8          14.1                8.4 +/-    3.91      21.3 +/-    3.91  0.140 / 0.480
G29     164.7          46.9               10.0 +/-    1.04      13.2 +/-    1.04  0.140 / 0.490