PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/12-23:27:50
G08     319.5          12.3               13.0 +/-    2.17      34.4 +/-    2.17  0.050 / 0.040
G10     304.4          53.6               13.9 +/-    0.65      16.8 +/-    0.65  0.030 / 0.030
G14     211.6          18.3               20.6 +/-    3.55      47.2 +/-    3.55  0.080 / 0.120
G15     45.6           24.2               12.8 +/-    2.20      25.5 +/-    2.20  0.080 / 0.120
G18     9.4            64.9               14.2 +/-    0.63      15.5 +/-    0.63  0.110 / 0.380
G20     75.4           14.1               12.4 +/-    1.47      31.6 +/-    1.47  0.110 / 0.390
G21     112.0          69.3               16.6 +/-    0.66      17.7 +/-    0.66  0.080 / 0.060
G24     93.2           28.4               16.5 +/-    1.52      29.9 +/-    1.52  0.080 / 0.080
G27     292.5          36.9               16.5 +/-    2.30      25.3 +/-    2.30  0.030 / 0.040
G32     213.8          34.8               17.4 +/-    1.66      27.7 +/-    1.66  0.040 / 0.040