PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/07-19:58:00
G01     320.0          14.7                8.2 +/-    1.78      20.6 +/-    1.78  0.280 / 0.300
G08     260.8          15.0                8.6 +/-    1.19      21.3 +/-    1.19  0.280 / 0.230
G10     72.8           55.8                7.8 +/-    0.30       9.2 +/-    0.30  0.080 / 0.070
G11     306.7          21.0                8.4 +/-    3.54      18.0 +/-    3.54  0.060 / 0.070
G14     286.2          69.7                7.5 +/-    0.52       7.9 +/-    0.52  0.030 / 0.020
G18     99.1           30.3                8.7 +/-    1.03      15.1 +/-    1.03  0.030 / 0.020
G27     225.6          10.8               10.2 +/-    5.61      27.9 +/-    5.61  0.150 / 0.250
G31     178.7          36.0               12.1 +/-    1.55      18.9 +/-    1.55  0.130 / 0.290
G32     355.6          70.6                7.0 +/-    0.55       7.4 +/-    0.55  0.060 / 0.040