PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/04-00:27:50
G01     319.4          16.4                9.4 +/-    1.61      22.5 +/-    1.61  0.130 / 0.250
G08     257.7          14.1               14.5 +/-    1.70      36.8 +/-    1.70  0.110 / 0.220
G10     75.7           55.1               11.9 +/-    0.61      14.2 +/-    0.61  0.030 / 0.030
G11     303.9          23.3               10.3 +/-    0.65      20.9 +/-    0.65  0.020 / 0.030
G14     294.8          70.9               11.9 +/-    0.50      12.5 +/-    0.50  0.050 / 0.050
G18     100.1          30.3               13.6 +/-    0.86      23.6 +/-    0.86  0.050 / 0.040
G31     179.0          37.3               16.1 +/-    0.91      24.5 +/-    0.91  0.070 / 0.080
G32     353.3          70.4               10.7 +/-    0.48      11.2 +/-    0.48  0.080 / 0.080