PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/15-09:42:50
G02     199.5          18.3                6.7 +/-    1.49      15.3 +/-    1.49  0.040 / 0.080
G06     176.0          47.2               11.2 +/-    1.18      14.6 +/-    1.18  0.040 / 0.080
G13     231.1          15.5                4.7 +/-    1.73      11.5 +/-    1.73  0.030 / 0.030
G17     20.4           61.2                5.4 +/-    0.55       6.0 +/-    0.55  0.020 / 0.040
G19     316.8          71.8                5.2 +/-    0.44       5.5 +/-    0.44  0.080 / 0.140
G24     313.0          25.8                5.2 +/-    4.50      10.0 +/-    4.50  0.080 / 0.160
G28     84.8           41.1                6.2 +/-    0.54       8.9 +/-    0.54  0.050 / 0.070
G30     156.5          17.4                7.9 +/-    1.07      18.6 +/-    1.07  0.050 / 0.060