PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/07-23:42:50
G08     320.9          10.8               -5.5 +/-   48.43     -15.1 +/-   48.43  0.050 / 0.030
G10     300.6          52.5               23.4 +/-    1.30      28.7 +/-    1.30  0.030 / 0.040
G14     210.8          16.1               26.2 +/-    1.88      63.5 +/-    1.88  0.060 / 0.040
G15     45.8           26.5               20.7 +/-    2.77      39.0 +/-    2.77  0.060 / 0.040
G18     3.7            65.5               23.0 +/-    1.10      25.0 +/-    1.10  0.130 / 0.090
G20     73.7           15.6               18.3 +/-    3.28      44.9 +/-    3.28  0.110 / 0.150
G21     106.1          71.3               23.5 +/-    0.81      24.7 +/-    0.81  0.150 / 0.150
G24     96.0           27.6               23.9 +/-    1.05      44.0 +/-    1.05  0.140 / 0.170
G27     295.4          36.2               25.0 +/-    2.27      38.8 +/-    2.27  0.090 / 0.270
G32     212.6          32.6               22.2 +/-    2.44      36.9 +/-    2.44  0.090 / 0.310