PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/11-14:58:00
G02     320.3          79.7                7.7 +/-    0.94       7.8 +/-    0.94  0.110 / 0.170
G05     166.9          30.0               11.4 +/-    0.93      19.9 +/-    0.93  0.120 / 0.170
G06     40.9           41.2                7.0 +/-    0.64      10.0 +/-    0.64  0.060 / 0.140
G12     314.8          69.4                7.2 +/-    0.80       7.6 +/-    0.80  0.070 / 0.140
G17     82.8           14.5                7.2 +/-    1.75      18.0 +/-    1.75  0.100 / 0.240
G19     73.5           26.7                7.5 +/-    2.70      14.1 +/-    2.70  0.100 / 0.230
G24     231.3          24.3               10.4 +/-    1.58      20.7 +/-    1.58  0.030 / 0.040
G25     317.2          25.8                6.5 +/-    4.10      12.5 +/-    4.10  0.030 / 0.040