PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/30-22:12:30
G10     299.4          53.2                9.9 +/-    1.51      12.0 +/-    1.51  0.040 / 0.040
G15     46.2           28.5                8.5 +/-    1.32      15.4 +/-    1.32  0.050 / 0.050
G20     354.6          65.2                9.9 +/-    0.62      10.8 +/-    0.62  0.060 / 0.140
G21     94.7           74.7               11.5 +/-    0.67      11.9 +/-    0.67  0.080 / 0.100
G24     98.8           26.8               10.9 +/-    1.62      20.4 +/-    1.62  0.080 / 0.090
G27     300.8          34.3                9.6 +/-    0.98      15.5 +/-    0.98  0.060 / 0.120
G32     210.2          32.1               13.7 +/-    1.15      22.9 +/-    1.15  0.050 / 0.070