PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/11-17:28:00
G08     318.2          13.2                8.2 +/-    1.54      21.2 +/-    1.54  0.060 / 0.080
G10     310.6          55.4                7.4 +/-    1.76       8.8 +/-    1.76  0.060 / 0.060
G14     213.1          20.4               11.0 +/-    3.58      23.9 +/-    3.58  0.080 / 0.100
G15     45.5           19.0                8.5 +/-    2.61      19.1 +/-    2.61  0.060 / 0.080
G18     21.7           63.0                7.6 +/-    1.27       8.4 +/-    1.27  0.130 / 0.320
G20     77.1           14.4                8.9 +/-    3.14      22.4 +/-    3.14  0.110 / 0.270
G21     121.4          61.8               10.3 +/-    0.66      11.5 +/-    0.66  0.070 / 0.060
G24     88.7           29.4               10.6 +/-    1.13      18.8 +/-    1.13  0.060 / 0.050
G27     288.1          37.6                6.5 +/-    1.11       9.9 +/-    1.11  0.030 / 0.030
G32     215.5          40.0               10.8 +/-    1.31      15.7 +/-    1.31  0.040 / 0.030