PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/20-15:27:40
G10     260.4          35.8                7.2 +/-    1.47      11.3 +/-    1.47  0.090 / 0.160
G13     45.1           22.0                4.2 +/-    1.83       8.9 +/-    1.83  0.090 / 0.170
G15     64.7           51.0                7.3 +/-    0.53       9.1 +/-    0.53  0.170 / 0.390
G16     284.7          14.6                5.7 +/-    1.70      14.4 +/-    1.70  0.140 / 0.310
G20     289.6          59.1                9.1 +/-    1.11      10.4 +/-    1.11  0.060 / 0.040
G21     350.4          67.3                6.0 +/-    0.97       6.5 +/-    0.97  0.050 / 0.050
G24     127.7          10.1              -16.0 +/-   25.21     -44.6 +/-   25.21  0.070 / 0.070
G26     259.1          11.0                6.9 +/-    2.59      18.7 +/-    2.59  0.080 / 0.100
G27     321.2          13.4                4.6 +/-    4.12      11.9 +/-    4.12  0.040 / 0.090
G29     166.4          39.8               10.3 +/-    0.67      15.1 +/-    0.67  0.040 / 0.070