PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/18-21:28:10
G01     319.6          17.8                7.9 +/-    1.09      18.4 +/-    1.09  0.190 / 0.350
G08     261.0          14.8                9.0 +/-    1.41      22.6 +/-    1.41  0.130 / 0.270
G10     77.0           52.7                8.4 +/-    1.09      10.2 +/-    1.09  0.050 / 0.050
G11     307.3          19.8                9.8 +/-    1.28      21.6 +/-    1.28  0.050 / 0.040
G14     279.8          67.6               10.6 +/-    0.48      11.4 +/-    0.48  0.110 / 0.200
G20     104.1          29.1               10.1 +/-    1.04      18.1 +/-    1.04  0.120 / 0.240
G27     225.8          10.8               10.3 +/-    4.14      28.1 +/-    4.14  0.160 / 0.300
G31     175.6          39.7               11.2 +/-    1.41      16.4 +/-    1.41  0.170 / 0.260
G32     4.9            68.9                9.7 +/-    0.46      10.3 +/-    0.46  0.040 / 0.040