PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/20-19:28:10
G08     310.8          18.3                9.6 +/-    1.98      22.0 +/-    1.98  0.050 / 0.090
G10     335.4          60.6                9.2 +/-    0.31      10.4 +/-    0.31  0.060 / 0.070
G14     217.7          27.0               12.2 +/-    0.85      22.8 +/-    0.85  0.070 / 0.120
G20     40.9           59.2                9.0 +/-    0.61      10.2 +/-    0.61  0.250 / 0.270
G21     134.2          57.7               10.4 +/-    0.74      12.0 +/-    0.74  0.040 / 0.060
G24     75.9           30.7                8.9 +/-    1.01      15.3 +/-    1.01  0.030 / 0.060
G27     275.3          37.9               10.4 +/-    1.02      15.7 +/-    1.02  0.080 / 0.180
G32     222.3          53.3               12.1 +/-    1.24      14.7 +/-    1.24  0.090 / 0.180