PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/26-23:27:40
G10     264.7          36.0               12.7 +/-    1.20      19.7 +/-    1.20  0.140 / 0.400
G13     43.6           21.4                9.3 +/-    1.59      19.7 +/-    1.59  0.160 / 0.370
G15     62.5           51.2               13.3 +/-    0.87      16.5 +/-    0.87  0.170 / 0.510
G16     283.5          11.9               12.1 +/-    2.32      32.2 +/-    2.32  0.150 / 0.450
G18     295.4          63.3               11.7 +/-    0.40      12.9 +/-    0.40  0.050 / 0.050
G20     53.6           35.4               10.2 +/-    1.45      16.1 +/-    1.45  0.050 / 0.050
G21     359.6          71.0               12.8 +/-    0.70      13.5 +/-    0.70  0.110 / 0.170
G24     123.1          12.7               15.6 +/-    2.04      41.1 +/-    2.04  0.110 / 0.200
G27     318.6          18.8                9.8 +/-    1.28      22.2 +/-    1.28  0.060 / 0.110
G29     166.6          30.3               16.1 +/-    1.64      28.0 +/-    1.64  0.050 / 0.110