PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/25-17:43:10
G03     229.3          67.6                9.3 +/-    0.77      10.0 +/-    0.77  0.060 / 0.150
G07     249.1          11.3               -2.2 +/-   20.83      -6.1 +/-   20.83  0.070 / 0.270
G09     303.7          18.5                9.0 +/-    2.85      20.6 +/-    2.85  0.160 / 0.430
G14     100.5          13.0                8.5 +/-    2.95      22.1 +/-    2.95  0.140 / 0.360
G16     134.0          58.1               10.6 +/-    0.61      12.2 +/-    0.61  0.040 / 0.040
G22     191.9          52.8               10.3 +/-    0.94      12.6 +/-    0.94  0.040 / 0.040
G23     318.8          48.5                8.7 +/-    0.78      11.2 +/-    0.78  0.170 / 0.130
G26     74.4           55.0                8.6 +/-    0.99      10.2 +/-    0.99  0.080 / 0.150
G31     51.9           21.5                6.4 +/-    2.28      13.5 +/-    2.28  0.030 / 0.040