PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/10-23:13:00
G10     289.3          48.4               12.4 +/-    3.87      16.0 +/-    3.87  0.130 / 0.070
G15     47.4           33.5               11.7 +/-    1.28      19.1 +/-    1.28  0.150 / 0.140
G18     345.3          66.8               12.9 +/-    0.40      13.9 +/-    0.40  0.070 / 0.200
G20     68.0           20.9               11.7 +/-    1.81      25.2 +/-    1.81  0.080 / 0.140
G21     80.3           75.7               12.9 +/-    0.61      13.3 +/-    0.61  0.050 / 0.030
G24     104.4          24.3               14.1 +/-    1.06      28.1 +/-    1.06  0.040 / 0.030
G27     304.1          32.8               11.8 +/-    2.72      19.5 +/-    2.72  0.050 / 0.080
G32     209.4          24.8               16.4 +/-    1.07      32.3 +/-    1.07  0.050 / 0.080