PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/07-16:43:10
G08     317.6          14.4                6.3 +/-    2.60      15.8 +/-    2.60  0.350 / 0.520
G10     310.8          55.9                9.1 +/-    1.57      10.7 +/-    1.57  0.240 / 0.490
G14     212.4          19.8               11.7 +/-    2.42      25.8 +/-    2.42  0.090 / 0.160
G15     45.7           22.3                7.8 +/-    2.63      16.3 +/-    2.63  0.060 / 0.150
G20     12.2           64.2               10.0 +/-    0.86      11.0 +/-    0.86  0.030 / 0.030
G21     118.9          65.3               12.1 +/-    0.98      13.2 +/-    0.98  0.040 / 0.030
G24     83.3           27.8                8.4 +/-    1.25      15.5 +/-    1.25  0.060 / 0.070
G27     293.4          35.7                9.7 +/-    2.72      15.3 +/-    2.72  0.070 / 0.080
G32     214.5          39.4               11.7 +/-    1.17      17.2 +/-    1.17  0.070 / 0.080