PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/14-18:43:00
G10     253.6          29.5               12.4 +/-    2.26      22.0 +/-    2.26  0.130 / 0.380
G13     50.4           27.5                8.2 +/-    2.06      15.1 +/-    2.06  0.130 / 0.390
G15     85.7           59.0               10.8 +/-    0.51      12.3 +/-    0.51  0.140 / 0.260
G16     292.1          15.3                8.3 +/-    2.16      20.5 +/-    2.16  0.100 / 0.200
G20     274.7          53.0               11.8 +/-    3.91      14.4 +/-    3.91  0.040 / 0.040
G21     339.7          63.1               11.5 +/-    0.87      12.7 +/-    0.87  0.060 / 0.030
G26     265.1          14.1                8.2 +/-    2.17      20.8 +/-    2.17  0.070 / 0.050
G29     165.3          46.2               13.6 +/-    1.41      18.1 +/-    1.41  0.050 / 0.050