PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/27-19:27:50
G10     269.4          41.0               21.4 +/-    1.62      30.6 +/-    1.62  0.130 / 0.260
G13     40.7           15.8               14.5 +/-    2.00      35.5 +/-    2.00  0.160 / 0.240
G15     57.1           47.2               17.4 +/-    0.58      22.7 +/-    0.58  0.040 / 0.040
G20     303.7          61.8               17.8 +/-    0.80      19.9 +/-    0.80  0.040 / 0.050
G21     5.6            72.3               18.4 +/-    0.73      19.2 +/-    0.73  0.130 / 0.620
G24     120.8          15.1               22.8 +/-    1.47      56.7 +/-    1.47  0.130 / 0.570
G27     318.1          19.9               18.8 +/-    3.27      41.3 +/-    3.27  0.140 / 0.220
G29     167.5          30.2               22.0 +/-    1.08      38.3 +/-    1.08  0.100 / 0.220
G32     204.1          11.1               11.6 +/-   64.34      31.6 +/-   64.34  0.030 / 0.040