PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/16-23:27:50
G10     106.7          39.1               14.0 +/-    0.70      20.7 +/-    0.70  0.080 / 0.150
G11     279.8          28.4               13.0 +/-    1.43      23.5 +/-    1.43  0.100 / 0.150
G14     357.8          66.8               12.7 +/-    0.62      13.7 +/-    0.62  0.050 / 0.040
G18     273.9          50.7               14.6 +/-    1.00      18.3 +/-    1.00  0.050 / 0.040
G20     120.8          13.7               13.4 +/-    2.23      34.5 +/-    2.23  0.120 / 0.310
G22     309.9          25.4               11.6 +/-    3.07      22.4 +/-    3.07  0.120 / 0.330
G25     78.4           16.0               10.3 +/-    0.61      25.0 +/-    0.61  0.060 / 0.070
G31     166.9          65.2               15.4 +/-    1.11      16.8 +/-    1.11  0.060 / 0.070
G32     37.4           51.6               12.3 +/-    0.83      15.2 +/-    0.83  0.030 / 0.050