PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/18-23:57:50
G03     215.7          59.2                6.6 +/-    0.56       7.6 +/-    0.56  0.050 / 0.060
G07     257.0          16.0                7.8 +/-    1.45      18.9 +/-    1.45  0.060 / 0.080
G09     311.6          31.8                5.8 +/-    0.68       9.7 +/-    0.68  0.110 / 0.520
G14     107.7          10.2                6.0 +/-    2.91      16.6 +/-    2.91  0.120 / 0.480
G16     92.3           62.8                6.7 +/-    0.58       7.5 +/-    0.58  0.050 / 0.040
G22     191.0          42.6                7.2 +/-    1.85      10.1 +/-    1.85  0.040 / 0.050
G23     329.9          59.7                4.6 +/-    0.82       5.3 +/-    0.82  0.030 / 0.050
G26     54.0           43.0                4.8 +/-    0.37       6.7 +/-    0.37  0.040 / 0.040
G27     134.3          10.1              -14.6 +/-   21.62     -40.7 +/-   21.62  0.040 / 0.050