PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/18-09:43:10
G02     246.6          77.9                4.6 +/-    0.63       4.7 +/-    0.63  0.190 / 0.260
G05     173.8          14.3                3.5 +/-    1.65       9.0 +/-    1.65  0.150 / 0.220
G06     40.3           57.3                5.0 +/-    0.74       5.9 +/-    0.74  0.060 / 0.040
G12     322.2          55.8                4.6 +/-    0.86       5.5 +/-    0.86  0.040 / 0.040
G17     70.7           21.7                3.7 +/-    1.98       7.9 +/-    1.98  0.060 / 0.120
G19     58.5           36.3                4.2 +/-    1.41       6.5 +/-    1.41  0.090 / 0.110
G24     246.4          34.4                7.1 +/-    1.77      11.4 +/-    1.77  0.090 / 0.060
G25     316.2          12.2               -1.3 +/-   24.18      -3.6 +/-   24.18  0.080 / 0.070