PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/24-20:42:40
G10     308.5          55.7               10.7 +/-    0.96      12.6 +/-    0.96  0.040 / 0.040
G14     211.8          14.4               14.8 +/-    2.22      37.4 +/-    2.22  0.030 / 0.040
G15     45.6           22.8                9.1 +/-    2.51      18.6 +/-    2.51  0.360 / 0.620
G20     9.4            64.3               11.7 +/-    0.47      12.9 +/-    0.47  0.160 / 0.490
G21     110.9          70.9               12.8 +/-    0.49      13.5 +/-    0.49  0.080 / 0.130
G24     93.0           28.7               12.2 +/-    1.24      22.0 +/-    1.24  0.080 / 0.260
G27     294.4          36.5               13.5 +/-    2.43      20.8 +/-    2.43  0.060 / 0.080
G32     212.6          38.2               14.2 +/-    1.45      21.3 +/-    1.45  0.060 / 0.080