PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/11-23:58:00
G08     311.1          18.5                9.6 +/-    1.09      21.9 +/-    1.09  0.030 / 0.020
G10     323.9          58.4               11.3 +/-    0.72      13.0 +/-    0.72  0.030 / 0.030
G14     216.4          29.3               16.4 +/-    1.31      29.1 +/-    1.31  0.030 / 0.050
G15     46.2           14.2                9.1 +/-    1.76      23.2 +/-    1.76  0.040 / 0.040
G18     32.2           61.0               14.2 +/-    0.45      16.0 +/-    0.45  0.060 / 0.090
G21     130.4          59.1               14.0 +/-    0.45      16.1 +/-    0.45  0.070 / 0.090
G24     79.5           30.6               12.2 +/-    1.36      21.0 +/-    1.36  0.050 / 0.060
G27     277.3          38.0               12.5 +/-    1.08      18.8 +/-    1.08  0.050 / 0.060
G32     220.9          46.4               13.7 +/-    1.92      18.0 +/-    1.92  0.130 / 0.220