PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/17-21:42:40
G08     312.4          17.0                9.0 +/-    1.10      21.3 +/-    1.10  0.030 / 0.050
G10     334.2          60.5               10.0 +/-    0.52      11.3 +/-    0.52  0.040 / 0.050
G14     217.4          27.7               12.4 +/-    3.02      22.9 +/-    3.02  0.150 / 0.380
G15     46.9           11.1                8.8 +/-    1.96      24.1 +/-    1.96  0.160 / 0.260
G20     38.4           59.9               11.4 +/-    0.58      12.9 +/-    0.58  0.180 / 0.260
G21     133.7          58.6               12.0 +/-    0.60      13.8 +/-    0.60  0.320 / 0.270
G24     76.2           30.6               10.8 +/-    1.34      18.7 +/-    1.34  0.080 / 0.050
G27     276.1          37.9               11.0 +/-    2.20      16.5 +/-    2.20  0.070 / 0.080
G32     221.9          52.1               12.6 +/-    1.50      15.5 +/-    1.50  0.080 / 0.080