PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/13-23:27:50
G10     303.2          54.3                9.4 +/-    1.42      11.2 +/-    1.42  0.090 / 0.550
G14     210.7          12.8               13.9 +/-    3.60      36.5 +/-    3.60  0.100 / 0.530
G15     45.8           25.8                7.7 +/-    0.64      14.7 +/-    0.64  0.070 / 0.090
G20     359.2          65.0                8.2 +/-    0.62       9.0 +/-    0.62  0.070 / 0.080
G21     102.5          73.2                9.7 +/-    1.02      10.0 +/-    1.02  0.040 / 0.050
G24     95.9           27.6               10.4 +/-    1.33      19.2 +/-    1.33  0.040 / 0.040
G27     298.2          35.2               10.4 +/-    0.90      16.4 +/-    0.90  0.040 / 0.050
G32     211.3          34.1               13.7 +/-    1.94      22.1 +/-    1.94  0.050 / 0.050