PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/15-09:58:00
G02     249.3          78.3                4.0 +/-    0.62       4.1 +/-    0.62  0.130 / 0.290
G05     173.7          14.8                4.3 +/-    2.21      10.7 +/-    2.21  0.080 / 0.210
G06     40.1           56.4                4.7 +/-    0.68       5.6 +/-    0.68  0.150 / 0.360
G17     71.3           21.3                3.3 +/-    1.46       7.0 +/-    1.46  0.140 / 0.260
G19     59.2           35.9                3.5 +/-    0.85       5.4 +/-    0.85  0.030 / 0.030
G24     245.6          34.0                7.6 +/-    0.91      12.3 +/-    0.91  0.040 / 0.030
G25     316.3          12.8                3.9 +/-    3.29      10.2 +/-    3.29  0.070 / 0.070