PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/14-19:42:30
G10     252.1          29.6               10.4 +/-    1.70      18.3 +/-    1.70  0.040 / 0.040
G13     51.5           27.7                5.6 +/-    3.12      10.4 +/-    3.12  0.040 / 0.050
G15     83.6           57.5               10.1 +/-    0.77      11.7 +/-    0.77  0.100 / 0.180
G16     293.6          15.8                6.4 +/-    1.32      15.7 +/-    1.32  0.110 / 0.230
G20     273.4          52.7                9.5 +/-    3.00      11.6 +/-    3.00  0.040 / 0.040
G21     335.4          60.6                8.6 +/-    0.62       9.7 +/-    0.62  0.030 / 0.040
G26     266.5          14.8                7.9 +/-    3.04      19.8 +/-    3.04  0.120 / 0.410
G29     164.2          48.8               11.1 +/-    0.61      14.2 +/-    0.61  0.120 / 0.370