PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/23-23:28:00
G08     312.5          16.7                7.8 +/-    2.77      18.6 +/-    2.77  0.040 / 0.050
G10     336.4          60.7                7.9 +/-    0.70       8.9 +/-    0.70  0.030 / 0.050
G14     218.0          29.6               12.2 +/-    1.66      21.6 +/-    1.66  0.090 / 0.230
G15     47.1           10.3                7.2 +/-    2.04      20.0 +/-    2.04  0.070 / 0.240
G20     39.4           59.8                9.3 +/-    0.79      10.6 +/-    0.79  0.080 / 0.080
G21     134.9          57.5                9.9 +/-    1.15      11.5 +/-    1.15  0.080 / 0.090
G24     74.5           30.4                8.1 +/-    0.46      14.0 +/-    0.46  0.210 / 0.240
G27     274.7          37.6               11.3 +/-    1.34      17.1 +/-    1.34  0.120 / 0.270
G32     223.0          52.7               12.2 +/-    1.57      14.9 +/-    1.57  0.050 / 0.080