PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/11-21:12:40
G05     48.3           18.0                7.5 +/-    0.63      17.3 +/-    0.63  0.100 / 0.370
G10     235.4          13.3               12.7 +/-    1.76      32.8 +/-    1.76  0.100 / 0.410
G13     75.8           35.4                9.1 +/-    0.76      14.3 +/-    0.76  0.160 / 0.400
G15     125.9          51.9               11.0 +/-    0.34      13.6 +/-    0.34  0.160 / 0.440
G16     314.9          12.1                9.4 +/-    1.72      25.1 +/-    1.72  0.050 / 0.090
G20     247.6          36.4               11.9 +/-    0.70      18.4 +/-    0.70  0.060 / 0.090
G21     312.2          45.6                8.8 +/-    1.74      11.8 +/-    1.74  0.180 / 0.340
G25     200.4          12.5               11.8 +/-    1.31      31.2 +/-    1.31  0.180 / 0.300
G26     288.6          20.2               10.0 +/-    2.36      21.9 +/-    2.36  0.060 / 0.120
G29     151.7          73.4                9.5 +/-    0.74       9.9 +/-    0.74  0.050 / 0.120