PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/14-13:57:30
G02     230.1          69.2                5.6 +/-    0.71       6.0 +/-    0.71  0.060 / 0.090
G05     175.1          10.4               -8.3 +/-   11.04     -22.8 +/-   11.04  0.070 / 0.070
G06     42.5           62.4                6.2 +/-    0.58       6.9 +/-    0.58  0.070 / 0.080
G12     321.0          47.4                6.1 +/-    0.46       8.0 +/-    0.46  0.050 / 0.110
G17     65.0           27.1                4.9 +/-    3.64       9.2 +/-    3.64  0.080 / 0.060
G19     52.9           40.1                6.0 +/-    1.52       8.7 +/-    1.52  0.080 / 0.050
G24     252.4          37.2                7.0 +/-    1.14      10.6 +/-    1.14  0.040 / 0.040
G28     128.0          11.3                6.4 +/-    4.54      17.2 +/-    4.54  0.030 / 0.040