PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/22-21:12:40
G08     315.6          15.1                8.4 +/-    1.42      20.8 +/-    1.42  0.060 / 0.090
G10     325.9          59.3               12.1 +/-    0.70      13.9 +/-    0.70  0.060 / 0.090
G14     215.4          23.5               17.7 +/-    2.06      35.7 +/-    2.06  0.040 / 0.060
G15     46.2           14.4                6.3 +/-    3.00      15.9 +/-    3.00  0.040 / 0.050
G20     30.4           61.5               10.7 +/-    0.63      12.0 +/-    0.63  0.120 / 0.330
G21     128.5          62.6               11.8 +/-    0.71      13.1 +/-    0.71  0.120 / 0.380
G24     81.4           30.5               10.9 +/-    0.92      18.9 +/-    0.92  0.220 / 0.410
G27     281.8          38.1               11.0 +/-    1.16      16.5 +/-    1.16  0.190 / 0.450
G32     218.5          48.0               14.8 +/-    0.52      19.2 +/-    0.52  0.120 / 0.250