PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/26-12:13:10
G01     243.3          32.0               28.2 +/-   27.32      47.4 +/-   27.32  0.100 / 0.360
G03     313.6          55.2               11.8 +/-   26.87      14.0 +/-   26.87  0.080 / 0.150
G14     66.9           36.5               10.8 +/-   28.84      16.8 +/-   28.84  0.050 / 0.320
G16     162.3          22.0                6.0 +/-    3.22      12.6 +/-    3.22  0.050 / 0.100
G18     214.3          21.6               11.7 +/-   26.62      24.9 +/-   26.62  0.040 / 0.230
G22     284.1          75.3               14.6 +/-   27.10      15.0 +/-   27.10  0.030 / 0.050
G23     291.6          23.7               10.3 +/-   27.30      20.8 +/-   27.30  0.070 / 0.310
G26     133.2          42.4               15.2 +/-   28.34      21.3 +/-   28.34  0.050 / 0.150
G31     40.7           52.5               11.2 +/-   27.06      13.7 +/-   27.06  0.090 / 0.170
G32     80.3           22.9                8.6 +/-   26.98      17.7 +/-   26.98  0.100 / 0.220