PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/27-13:28:10
G02     262.8          78.8                5.3 +/-    0.59       5.4 +/-    0.59  0.100 / 0.110
G05     171.4          19.5                5.7 +/-    2.34      12.6 +/-    2.34  0.080 / 0.120
G06     39.7           51.4                4.9 +/-    0.67       6.1 +/-    0.67  0.040 / 0.040
G12     321.1          59.1                4.1 +/-    1.01       4.7 +/-    1.01  0.040 / 0.040
G17     74.4           20.1                5.5 +/-    0.81      12.0 +/-    0.81  0.060 / 0.080
G19     63.7           33.1                4.3 +/-    1.03       7.1 +/-    1.03  0.060 / 0.100
G24     240.9          31.2                5.2 +/-    1.57       8.9 +/-    1.57  0.050 / 0.050
G25     317.0          16.4                1.4 +/-    2.16       3.3 +/-    2.16  0.050 / 0.040