PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/27-21:28:10
G10     266.4          39.2               13.8 +/-    1.25      20.4 +/-    1.25  0.040 / 0.060
G13     41.9           17.9                7.8 +/-    1.20      18.1 +/-    1.20  0.040 / 0.050
G15     60.6           50.1               11.3 +/-    0.55      14.3 +/-    0.55  0.160 / 0.370
G16     279.7          12.9               12.9 +/-    1.28      33.8 +/-    1.28  0.150 / 0.390
G20     297.0          60.1               11.2 +/-    0.53      12.7 +/-    0.53  0.100 / 0.190
G21     358.8          70.6               11.0 +/-    0.48      11.6 +/-    0.48  0.090 / 0.140
G24     122.6          13.5               13.6 +/-    2.59      34.9 +/-    2.59  0.080 / 0.210
G27     319.4          17.7                9.2 +/-    1.27      21.4 +/-    1.27  0.090 / 0.230
G29     167.0          32.6               15.7 +/-    0.98      26.1 +/-    0.98  0.100 / 0.360