PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/08-19:42:40
G01     321.0          10.6              -15.3 +/-   25.12     -42.1 +/-   25.12  0.180 / 0.300
G08     265.3          17.2                9.5 +/-    1.10      22.3 +/-    1.10  0.170 / 0.510
G10     64.1           58.1                8.7 +/-    0.81      10.0 +/-    0.81  0.090 / 0.100
G11     310.4          18.1                8.3 +/-    1.81      19.2 +/-    1.81  0.060 / 0.100
G14     272.7          67.6                8.6 +/-    0.72       9.2 +/-    0.72  0.100 / 0.330
G18     94.7           33.5                9.1 +/-    1.24      14.8 +/-    1.24  0.050 / 0.170
G24     39.4           9.6                 7.7 +/-    2.87      21.6 +/-    2.87  0.040 / 0.040
G27     229.1          14.1                9.6 +/-    1.60      24.5 +/-    1.60  0.040 / 0.040
G31     179.5          30.8               10.9 +/-    1.27      18.8 +/-    1.27  0.260 / 0.240
G32     341.4          73.3                8.8 +/-    0.41       9.2 +/-    0.41  0.190 / 0.290