PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/13-17:12:50
G08     267.7          17.6                7.9 +/-    2.03      18.3 +/-    2.03  0.130 / 0.260
G10     62.0           58.5                8.6 +/-    0.61       9.9 +/-    0.61  0.280 / 0.300
G11     312.0          16.5                6.8 +/-    2.24      16.2 +/-    2.24  0.110 / 0.220
G14     268.3          66.2               10.7 +/-    0.82      11.6 +/-    0.82  0.070 / 0.390
G18     93.9           33.8                9.1 +/-    1.17      14.8 +/-    1.17  0.070 / 0.100
G21     153.5          11.0               11.1 +/-    4.35      30.4 +/-    4.35  0.090 / 0.090
G24     39.8           10.3                8.1 +/-    2.09      22.6 +/-    2.09  0.150 / 0.250
G27     230.2          14.9                9.2 +/-    1.52      22.8 +/-    1.52  0.260 / 0.490
G31     178.6          30.8               13.7 +/-    1.55      23.5 +/-    1.55  0.030 / 0.020
G32     341.2          73.7                9.2 +/-    0.39       9.6 +/-    0.39  0.020 / 0.020