PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/21-18:43:00
G08     271.1          19.9                1.5 +/-   29.60       3.2 +/-   29.60  0.050 / 0.020
G10     56.5           58.2                3.9 +/-   10.81       4.5 +/-   10.81  0.070 / 0.030
G14     252.9          59.1                5.8 +/-   12.44       6.6 +/-   12.44  0.050 / 0.060
G20     93.2           36.5                5.5 +/-    7.06       8.5 +/-    7.06  0.050 / 0.050
G21     154.4          19.0                9.5 +/-    8.81      21.5 +/-    8.81  0.100 / 0.210
G24     42.2           13.7                3.1 +/-   20.71       7.9 +/-   20.71  0.100 / 0.180
G27     234.5          19.0                3.8 +/-   28.63       8.7 +/-   28.63  0.050 / 0.070
G31     178.9          26.2                7.4 +/-   12.10      14.1 +/-   12.10  0.060 / 0.070
G32     330.7          75.9                3.2 +/-   10.95       3.3 +/-   10.95  0.130 / 0.220