PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/21-03:28:10
G08     317.9          13.5                6.4 +/-    1.10      16.4 +/-    1.10  0.040 / 0.050
G10     318.0          57.7                8.3 +/-    0.89       9.6 +/-    0.89  0.040 / 0.040
G14     213.5          22.3               15.3 +/-    1.29      31.8 +/-    1.29  0.060 / 0.040
G15     45.7           16.9                6.5 +/-    0.54      15.3 +/-    0.54  0.060 / 0.040
G20     19.2           63.4                8.7 +/-    0.84       9.6 +/-    0.84  0.050 / 0.020
G21     122.9          65.5                9.1 +/-    0.62       9.9 +/-    0.62  0.060 / 0.030
G24     84.6           29.7                7.6 +/-    1.16      13.4 +/-    1.16  0.110 / 0.260
G27     287.8          37.3                9.8 +/-    1.39      14.8 +/-    1.39  0.110 / 0.250
G32     216.4          41.2               14.5 +/-    1.04      20.7 +/-    1.04  0.140 / 0.080