PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/26-23:28:10
G10     261.2          35.9               13.1 +/-    1.22      20.4 +/-    1.22  0.150 / 0.280
G13     44.6           21.6                8.4 +/-    2.03      17.8 +/-    2.03  0.130 / 0.280
G15     66.1           52.6                9.8 +/-    0.69      12.0 +/-    0.69  0.050 / 0.040
G16     285.2          14.1                7.7 +/-    1.45      19.7 +/-    1.45  0.040 / 0.050
G20     286.6          57.0               10.8 +/-    1.71      12.7 +/-    1.71  0.170 / 0.250
G21     349.5          67.4               10.0 +/-    0.86      10.7 +/-    0.86  0.110 / 0.250
G24     126.1          10.7                2.0 +/-   35.90       5.5 +/-   35.90  0.030 / 0.040
G26     258.3          10.6               10.1 +/-    3.54      27.7 +/-    3.54  0.030 / 0.030
G27     321.2          13.5                6.2 +/-    2.51      15.9 +/-    2.51  0.110 / 0.310
G29     165.9          37.1               11.9 +/-    1.05      18.2 +/-    1.05  0.100 / 0.330