PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/07-19:27:50
G05     48.9           16.9                8.2 +/-    2.36      19.6 +/-    2.36  0.130 / 0.080
G10     237.0          15.3               11.1 +/-    1.54      27.5 +/-    1.54  0.060 / 0.080
G13     72.6           35.1                9.6 +/-    0.80      15.1 +/-    0.80  0.050 / 0.120
G15     123.7          53.4               10.5 +/-    0.91      12.8 +/-    0.91  0.060 / 0.090
G16     312.4          13.2                7.0 +/-    3.96      18.2 +/-    3.96  0.050 / 0.050
G20     250.2          39.0               10.9 +/-    1.33      16.1 +/-    1.33  0.030 / 0.040
G21     314.5          47.2               10.3 +/-    1.10      13.5 +/-    1.10  0.130 / 0.390
G25     199.2          10.6               12.0 +/-    3.12      33.1 +/-    3.12  0.130 / 0.310
G26     285.9          20.0                7.3 +/-    1.13      16.0 +/-    1.13  0.110 / 0.300
G29     154.5          71.2               11.2 +/-    0.78      11.8 +/-    0.78  0.130 / 0.240