PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/22-19:43:10
G05     52.1           11.6                6.7 +/-    0.63      18.1 +/-    0.63  0.120 / 0.200
G10     243.0          20.1               10.4 +/-    1.29      22.9 +/-    1.29  0.190 / 0.240
G13     63.2           34.0                8.1 +/-    1.15      13.1 +/-    1.15  0.040 / 0.070
G15     116.2          57.7                9.4 +/-    0.49      10.8 +/-    0.49  0.060 / 0.060
G16     304.5          15.2                4.8 +/-    4.84      11.8 +/-    4.84  0.110 / 0.700
G20     258.1          44.3                6.5 +/-    1.66       8.9 +/-    1.66  0.120 / 0.730
G21     323.3          53.7                8.5 +/-    1.66      10.3 +/-    1.66  0.070 / 0.130
G26     277.1          18.7                7.1 +/-    1.94      16.2 +/-    1.94  0.070 / 0.150
G29     161.4          61.4               10.7 +/-    0.95      12.0 +/-    0.95  0.040 / 0.050