PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/19-18:28:00
G01     294.7          41.1               11.4 +/-    1.26      16.4 +/-    1.26  0.060 / 0.100
G03     309.8          11.8                4.2 +/-   25.38      11.2 +/-   25.38  0.050 / 0.090
G10     115.5          30.4               11.8 +/-    0.99      20.5 +/-    0.99  0.030 / 0.050
G14     7.8            64.0                9.9 +/-    0.62      10.9 +/-    0.62  0.040 / 0.050
G22     313.0          33.2                8.8 +/-    1.62      14.5 +/-    1.62  0.090 / 0.120
G25     72.1           17.9               10.4 +/-    1.81      24.2 +/-    1.81  0.080 / 0.140
G31     152.3          74.3               11.2 +/-    0.51      11.6 +/-    0.51  0.360 / 0.420
G32     47.4           44.0               10.2 +/-    0.68      13.9 +/-    0.68  0.440 / 0.300