PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/23-03:43:10
G08     304.0          21.5               10.0 +/-    2.22      21.2 +/-    2.22  0.080 / 0.070
G10     338.7          60.9                7.2 +/-    0.40       8.1 +/-    0.40  0.060 / 0.090
G14     220.8          36.9               10.6 +/-    1.40      16.3 +/-    1.40  0.070 / 0.090
G15     47.6           9.8                 4.7 +/-    5.03      13.2 +/-    5.03  0.090 / 0.080
G18     43.0           58.6                9.1 +/-    0.39      10.4 +/-    0.39  0.040 / 0.030
G21     137.9          52.9               10.1 +/-    0.66      12.4 +/-    0.66  0.030 / 0.020
G24     70.3           30.2                7.8 +/-    1.39      13.5 +/-    1.39  0.050 / 0.050
G27     267.0          36.5                8.8 +/-    2.07      13.6 +/-    2.07  0.040 / 0.040
G32     227.9          56.0               10.0 +/-    2.77      11.8 +/-    2.77  0.060 / 0.060