PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/22-20:27:40
G05     48.2           18.4                7.4 +/-    2.26      17.0 +/-    2.26  0.040 / 0.090
G10     235.4          13.3               11.5 +/-    4.52      29.7 +/-    4.52  0.060 / 0.100
G13     75.7           35.3               10.8 +/-    0.76      17.1 +/-    0.76  0.070 / 0.150
G15     126.5          51.9               12.0 +/-    0.36      14.8 +/-    0.36  0.070 / 0.120
G16     314.7          12.2                8.1 +/-    3.34      21.5 +/-    3.34  0.030 / 0.050
G20     247.8          36.7               14.3 +/-    1.95      21.9 +/-    1.95  0.030 / 0.040
G21     312.2          45.6               10.2 +/-    0.85      13.7 +/-    0.85  0.140 / 0.440
G25     200.5          12.5               11.4 +/-    2.68      30.2 +/-    2.68  0.150 / 0.500
G26     288.5          20.2                8.5 +/-    1.65      18.6 +/-    1.65  0.140 / 0.450
G29     151.9          73.6               10.7 +/-    0.76      11.1 +/-    0.76  0.130 / 0.340