PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/17-22:57:50
G01     315.2          25.5                7.7 +/-    1.18      14.8 +/-    1.18  0.120 / 0.410
G10     93.2           47.1                9.2 +/-    0.57      12.0 +/-    0.57  0.150 / 0.360
G11     292.9          27.0                7.1 +/-    1.00      13.3 +/-    1.00  0.070 / 0.170
G14     326.4          70.8                9.9 +/-    0.85      10.4 +/-    0.85  0.090 / 0.160
G18     292.5          47.5                9.1 +/-    1.18      11.8 +/-    1.18  0.050 / 0.050
G20     112.8          22.3               10.5 +/-    1.61      21.9 +/-    1.61  0.050 / 0.040
G22     305.1          16.3                5.1 +/-    2.39      12.3 +/-    2.39  0.100 / 0.160
G25     89.7           12.2                9.4 +/-    1.61      25.1 +/-    1.61  0.090 / 0.160
G31     173.9          52.0               11.5 +/-    1.17      14.1 +/-    1.17  0.150 / 0.460
G32     23.6           60.3                8.8 +/-    0.48      10.0 +/-    0.48  0.250 / 0.380