PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/08-02:12:30
G01     319.6          16.0                4.5 +/-    2.36      10.9 +/-    2.36  0.050 / 0.040
G08     258.0          14.4               15.2 +/-    4.19      38.4 +/-    4.19  0.040 / 0.050
G10     74.6           55.4               10.8 +/-    1.51      12.8 +/-    1.51  0.050 / 0.070
G11     304.0          23.4                8.3 +/-    1.21      16.9 +/-    1.21  0.060 / 0.060
G14     293.5          70.9               18.3 +/-    2.27      19.3 +/-    2.27  0.030 / 0.040
G18     99.2           31.4               13.4 +/-    2.21      22.8 +/-    2.21  0.040 / 0.040
G31     178.0          37.8               16.1 +/-    1.14      24.4 +/-    1.14  0.080 / 0.160
G32     355.1          70.3                8.9 +/-    0.87       9.4 +/-    0.87  0.100 / 0.180