PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/11-22:12:30
G10     256.5          32.8               11.0 +/-    2.28      18.3 +/-    2.28  0.060 / 0.050
G13     47.7           24.8                9.4 +/-    2.04      18.5 +/-    2.04  0.050 / 0.040
G15     74.0           55.5                9.9 +/-    0.99      11.8 +/-    0.99  0.090 / 0.180
G16     289.4          15.0                6.1 +/-    2.93      15.0 +/-    2.93  0.100 / 0.240
G20     279.7          54.8               10.5 +/-    3.16      12.5 +/-    3.16  0.040 / 0.030
G21     341.9          64.0               10.3 +/-    0.68      11.3 +/-    0.68  0.040 / 0.040
G26     262.3          12.8               10.7 +/-    2.38      27.9 +/-    2.38  0.170 / 0.750
G29     165.1          42.7               10.3 +/-    1.14      14.4 +/-    1.14  0.140 / 0.680