PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/14-13:27:40
G02     70.8           22.7                2.9 +/-    1.36       6.0 +/-    1.36  0.040 / 0.040
G05     47.2           52.1                4.0 +/-    0.74       5.0 +/-    0.74  0.040 / 0.040
G12     179.2          16.9                5.7 +/-    1.90      13.5 +/-    1.90  0.150 / 0.330
G13     115.1          23.5                8.1 +/-    1.13      16.4 +/-    1.13  0.170 / 0.340
G15     154.2          24.7                8.2 +/-    2.51      16.1 +/-    2.51  0.030 / 0.030
G20     225.4          11.5               -4.3 +/-   11.77     -11.7 +/-   11.77  0.030 / 0.030
G21     282.9          25.4                7.3 +/-    1.72      14.1 +/-    1.72  0.110 / 0.190
G25     221.2          41.5                7.7 +/-    2.99      10.9 +/-    2.99  0.090 / 0.260
G29     337.4          66.7                5.8 +/-    0.62       6.3 +/-    0.62  0.070 / 0.110