PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/19-21:28:00
G01     317.6          20.8                8.8 +/-    2.48      19.1 +/-    2.48  0.210 / 0.350
G08     253.8          11.3               16.6 +/-    2.34      44.9 +/-    2.34  0.120 / 0.260
G10     84.5           51.9                9.2 +/-    0.62      11.3 +/-    0.62  0.140 / 0.330
G11     299.8          24.8               10.2 +/-    1.46      19.9 +/-    1.46  0.100 / 0.240
G14     310.6          71.3                8.9 +/-    0.61       9.4 +/-    0.61  0.050 / 0.060
G18     105.2          25.5               12.0 +/-    0.68      23.1 +/-    0.68  0.040 / 0.060
G22     302.0          12.2                9.2 +/-    1.85      24.4 +/-    1.85  0.130 / 0.000
G25     97.3           10.0              -18.5 +/-   14.14     -51.7 +/-   14.14  0.040 / 0.040
G31     178.1          43.3               12.6 +/-    1.17      17.4 +/-    1.17  0.050 / 0.050
G32     10.1           66.0                8.6 +/-    0.79       9.3 +/-    0.79  0.030 / 0.030