PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/07-21:27:50
G05     49.1           19.0               15.7 +/-    2.26      35.4 +/-    2.26  0.040 / 0.060
G10     238.2          13.7               21.2 +/-    1.05      54.5 +/-    1.05  0.050 / 0.060
G13     73.9           37.3               -7.2 +/-   17.10     -10.9 +/-   17.10  0.120 / 0.270
G15     120.6          53.8               20.0 +/-    0.74      24.2 +/-    0.74  0.090 / 0.310
G16     314.2          11.6               13.3 +/-   10.05      35.8 +/-   10.05  0.020 / 0.040
G18     248.3          44.2               18.9 +/-    2.41      25.8 +/-    2.41  0.030 / 0.040
G20     31.1           63.1               16.3 +/-    0.59      18.1 +/-    0.59  0.300 / 0.570
G21     316.4          49.8               16.7 +/-    0.91      21.1 +/-    0.91  0.190 / 0.430
G26     287.6          19.2               16.2 +/-    1.88      36.3 +/-    1.88  0.040 / 0.040
G29     156.0          65.0               19.9 +/-    0.46      21.7 +/-    0.46  0.030 / 0.040