PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/11-17:57:40
G01     228.0          19.2               12.1 +/-    2.15      27.0 +/-    2.15  0.070 / 0.070
G03     291.5          67.7               11.8 +/-    0.43      12.7 +/-    0.43  0.070 / 0.080
G14     84.3           25.1               11.6 +/-    2.64      22.6 +/-    2.64  0.120 / 0.180
G16     153.0          39.8               11.8 +/-    1.05      17.2 +/-    1.05  0.090 / 0.190
G22     218.6          72.1               12.9 +/-    0.44      13.5 +/-    0.44  0.170 / 0.260
G23     304.3          33.9                9.7 +/-    1.71      15.7 +/-    1.71  0.170 / 0.580
G26     112.8          54.2               12.0 +/-    0.34      14.4 +/-    0.34  0.050 / 0.040
G31     43.2           38.3               10.1 +/-    0.89      15.1 +/-    0.89  0.040 / 0.040
G32     96.0           10.2               13.2 +/-    1.61      36.7 +/-    1.61  0.190 / 0.220