PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/22-17:58:10
G10     280.6          44.7               16.0 +/-    0.90      21.6 +/-    0.90  0.080 / 0.110
G13     38.3           9.9                12.7 +/-    2.71      35.6 +/-    2.71  0.080 / 0.090
G15     49.5           37.7               14.6 +/-    0.68      22.0 +/-    0.68  0.040 / 0.030
G18     333.1          67.2               15.1 +/-    0.46      16.2 +/-    0.46  0.040 / 0.030
G20     62.2           27.7               13.1 +/-    2.27      24.2 +/-    2.27  0.190 / 0.160
G21     63.4           75.5               16.4 +/-    0.98      16.9 +/-    0.98  0.110 / 0.200
G24     111.0          20.8               16.7 +/-    2.53      36.0 +/-    2.53  0.070 / 0.130
G27     310.4          28.7               14.3 +/-    1.75      25.8 +/-    1.75  0.080 / 0.140
G29     166.4          14.2               17.1 +/-    2.27      43.3 +/-    2.27  0.100 / 0.590
G32     207.2          18.9               17.2 +/-    1.00      38.8 +/-    1.00  0.170 / 0.660