PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/25-00:58:10
G10     309.8          55.9               10.1 +/-    1.25      11.9 +/-    1.25  0.060 / 0.100
G14     211.9          17.1               15.0 +/-    2.53      35.5 +/-    2.53  0.060 / 0.070
G15     45.6           21.7                8.5 +/-    2.41      17.8 +/-    2.41  0.040 / 0.040
G20     7.4            64.5                9.7 +/-    0.64      10.6 +/-    0.64  0.030 / 0.040
G21     113.3          70.1               12.8 +/-    0.85      13.5 +/-    0.85  0.140 / 0.320
G24     90.9           28.8               10.6 +/-    0.84      19.0 +/-    0.84  0.180 / 0.310
G27     293.6          36.5               11.2 +/-    2.45      17.3 +/-    2.45  0.140 / 0.300
G32     213.5          37.6               13.9 +/-    1.55      21.0 +/-    1.55  0.210 / 0.250