PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/04-08:27:50
G02     233.3          74.6                4.8 +/-    0.52       4.9 +/-    0.52  0.140 / 0.410
G05     175.0          10.9               -5.2 +/-   16.05     -14.4 +/-   16.05  0.200 / 0.450
G06     42.0           62.4                2.3 +/-    0.96       2.6 +/-    0.96  0.040 / 0.040
G12     321.6          50.0                2.8 +/-    0.44       3.6 +/-    0.44  0.030 / 0.050
G17     67.1           24.2                4.4 +/-    2.36       8.7 +/-    2.36  0.160 / 0.360
G19     53.8           39.4                3.1 +/-    2.74       4.5 +/-    2.74  0.240 / 0.440
G24     251.6          36.8                5.5 +/-    1.73       8.5 +/-    1.73  0.050 / 0.090
G28     128.1          12.2                6.3 +/-    2.01      16.6 +/-    2.01  0.090 / 0.120