PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/09-01:58:10
G01     320.6          12.2               -0.7 +/-   29.72      -1.9 +/-   29.72  0.160 / 0.360
G08     262.1          16.5                6.2 +/-    1.90      14.8 +/-    1.90  0.240 / 0.480
G10     66.9           57.6                2.4 +/-    0.34       2.8 +/-    0.34  0.150 / 0.300
G11     307.6          21.0                4.7 +/-    5.63      10.1 +/-    5.63  0.140 / 0.250
G14     279.9          69.5                4.5 +/-    0.91       4.8 +/-    0.91  0.020 / 0.030
G18     95.1           34.3                2.9 +/-    0.43       4.7 +/-    0.43  0.030 / 0.030
G21     154.5          10.8                5.7 +/-    4.14      15.7 +/-    4.14  0.040 / 0.050
G27     227.6          12.9                8.4 +/-    3.18      22.0 +/-    3.18  0.040 / 0.050
G31     178.9          32.9                4.1 +/-    2.25       6.8 +/-    2.25  0.230 / 0.450
G32     342.2          72.8                5.3 +/-    0.45       5.5 +/-    0.45  0.140 / 0.330