PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/02-22:57:50
G08     307.8          19.0                8.8 +/-    1.28      19.9 +/-    1.28  0.050 / 0.050
G10     346.6          61.8                9.3 +/-    0.58      10.4 +/-    0.58  0.040 / 0.040
G14     220.7          33.9               13.6 +/-    1.19      22.0 +/-    1.19  0.090 / 0.150
G20     48.6           57.5               11.4 +/-    0.65      13.2 +/-    0.65  0.110 / 0.160
G21     139.4          52.7               12.5 +/-    1.09      15.3 +/-    1.09  0.050 / 0.090
G24     68.9           29.8               10.5 +/-    0.93      18.4 +/-    0.93  0.080 / 0.080
G27     268.2          36.6               11.7 +/-    1.32      18.0 +/-    1.32  0.070 / 0.080
G32     227.9          57.7               11.9 +/-    1.92      13.8 +/-    1.92  0.080 / 0.080