PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/08-18:28:00
G05     50.1           16.1                8.9 +/-    1.05      21.6 +/-    1.05  0.060 / 0.060
G10     239.6          16.7               17.5 +/-    2.26      41.8 +/-    2.26  0.050 / 0.040
G13     68.8           35.3               12.9 +/-    1.21      20.3 +/-    1.21  0.090 / 0.410
G15     123.2          55.2               15.0 +/-    0.90      17.9 +/-    0.90  0.070 / 0.360
G16     309.2          14.1                9.2 +/-    3.51      23.3 +/-    3.51  0.070 / 0.100
G20     253.1          40.9               15.9 +/-    2.88      22.8 +/-    2.88  0.070 / 0.110
G21     318.9          50.9               12.9 +/-    1.24      16.1 +/-    1.24  0.030 / 0.040
G26     282.3          19.6               11.8 +/-    0.85      26.2 +/-    0.85  0.030 / 0.040
G29     158.7          66.6               14.2 +/-    0.74      15.3 +/-    0.74  0.180 / 0.190