PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/01-21:42:20
G01     229.3          22.5                9.9 +/-    2.85      20.5 +/-    2.85  0.070 / 0.130
G03     304.7          60.8                7.6 +/-    1.26       8.6 +/-    1.26  0.080 / 0.130
G14     76.3           33.0                7.5 +/-    2.14      12.3 +/-    2.14  0.040 / 0.030
G16     150.2          37.4               10.4 +/-    1.49      15.9 +/-    1.49  0.040 / 0.040
G23     301.2          31.6                9.3 +/-    1.05      15.7 +/-    1.05  0.070 / 0.090
G26     111.9          51.5                8.9 +/-    0.72      11.0 +/-    0.72  0.080 / 0.100
G31     43.0           39.4                6.9 +/-    1.36      10.2 +/-    1.36  0.110 / 0.130
G32     93.3           9.4                11.2 +/-    3.37      31.5 +/-    3.37  0.080 / 0.110