PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/13-23:42:50
G08     266.6          16.6               10.5 +/-    0.89      25.0 +/-    0.89  0.160 / 0.360
G10     70.2           55.0               10.0 +/-    1.03      12.0 +/-    1.03  0.200 / 0.450
G11     309.9          18.2                8.1 +/-    3.00      18.5 +/-    3.00  0.040 / 0.050
G14     271.8          66.7                7.9 +/-    0.71       8.5 +/-    0.71  0.040 / 0.050
G18     310.1          35.8                9.5 +/-    0.75      14.9 +/-    0.75  0.080 / 0.110
G20     100.0          32.9               10.1 +/-    0.88      16.6 +/-    0.88  0.060 / 0.110
G21     156.0          12.4                9.9 +/-    2.37      26.1 +/-    2.37  0.030 / 0.020
G27     228.9          13.6               11.5 +/-    3.61      29.6 +/-    3.61  0.030 / 0.020
G31     176.2          35.6               10.2 +/-    1.99      16.0 +/-    1.99  0.130 / 0.510
G32     352.7          72.1                8.2 +/-    0.62       8.6 +/-    0.62  0.220 / 0.490