PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/22-00:28:10
G08     278.7          22.3               11.3 +/-    0.82      23.5 +/-    0.82  0.030 / 0.030
G10     33.0           62.6               10.0 +/-    0.40      11.1 +/-    0.40  0.030 / 0.030
G14     244.9          58.6               12.1 +/-    1.02      13.9 +/-    1.02  0.130 / 0.240
G18     78.2           44.4               11.4 +/-    0.93      15.5 +/-    0.93  0.250 / 0.140
G21     150.8          26.5               13.1 +/-    2.58      24.7 +/-    2.58  0.020 / 0.020
G24     47.3           20.2                8.8 +/-    3.23      19.3 +/-    3.23  0.020 / 0.020
G27     240.7          24.0               13.4 +/-    2.08      26.8 +/-    2.08  0.090 / 0.180
G31     182.5          15.7               16.8 +/-    2.46      41.2 +/-    2.46  0.120 / 0.140
G32     275.4          73.1               11.6 +/-    0.43      12.1 +/-    0.43  0.080 / 0.170