PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/15-23:27:50
G10     309.2          55.8                8.6 +/-    0.59      10.2 +/-    0.59  0.090 / 0.250
G14     211.8          16.1               13.1 +/-    3.10      31.6 +/-    3.10  0.120 / 0.310
G15     45.6           22.6                6.1 +/-    0.59      12.6 +/-    0.59  0.050 / 0.070
G20     8.1            64.4                8.5 +/-    0.44       9.3 +/-    0.44  0.060 / 0.070
G21     112.2          70.5               11.1 +/-    1.12      11.7 +/-    1.12  0.040 / 0.040
G24     91.7           28.8                8.7 +/-    1.08      15.6 +/-    1.08  0.040 / 0.040
G27     293.9          36.5               10.1 +/-    1.63      15.6 +/-    1.63  0.030 / 0.050
G32     213.1          37.8               11.5 +/-    1.59      17.4 +/-    1.59  0.030 / 0.050