PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/28-20:13:00
G10     298.7          53.0               13.8 +/-    1.70      16.8 +/-    1.70  0.050 / 0.040
G15     46.1           28.0               11.7 +/-    1.42      21.5 +/-    1.42  0.060 / 0.050
G20     355.3          65.2               15.1 +/-    0.82      16.5 +/-    0.82  0.080 / 0.110
G21     93.0           74.8               16.1 +/-    0.60      16.6 +/-    0.60  0.080 / 0.130
G24     99.8           26.6               14.0 +/-    1.28      26.3 +/-    1.28  0.060 / 0.090
G27     301.3          34.2               11.5 +/-    1.11      18.6 +/-    1.11  0.060 / 0.080
G32     209.8          32.2               15.5 +/-    0.74      26.0 +/-    0.74  0.070 / 0.120