PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/31-19:57:50
G05     49.2           16.2                6.9 +/-    2.04      16.6 +/-    2.04  0.050 / 0.060
G10     237.4          15.7               15.0 +/-    3.03      36.7 +/-    3.03  0.040 / 0.070
G13     71.8           35.0                8.6 +/-    0.59      13.7 +/-    0.59  0.120 / 0.330
G15     122.2          53.8               11.3 +/-    0.62      13.6 +/-    0.62  0.120 / 0.370
G16     312.0          13.3                7.0 +/-    2.71      18.0 +/-    2.71  0.260 / 0.410
G20     250.7          39.3               12.8 +/-    1.01      18.9 +/-    1.01  0.180 / 0.380
G21     315.1          47.6                9.4 +/-    0.70      12.3 +/-    0.70  0.050 / 0.150
G25     198.9          10.1               11.5 +/-   24.42      32.0 +/-   24.42  0.050 / 0.130
G26     285.3          19.9                9.9 +/-    1.59      21.9 +/-    1.59  0.090 / 0.180
G29     154.9          70.3               11.6 +/-    0.79      12.3 +/-    0.79  0.070 / 0.160