PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/19-00:28:00
G10     274.2          43.2               10.7 +/-    1.10      14.8 +/-    1.10  0.040 / 0.050
G13     39.2           12.7                7.9 +/-    2.05      20.8 +/-    2.05  0.040 / 0.040
G15     53.4           43.6                9.3 +/-    1.06      12.8 +/-    1.06  0.100 / 0.270
G20     309.0          62.2               10.1 +/-    0.78      11.2 +/-    0.78  0.100 / 0.290
G21     18.1           74.7               10.4 +/-    0.73      10.7 +/-    0.73  0.100 / 0.130
G24     116.2          17.6                9.9 +/-    1.69      23.1 +/-    1.69  0.080 / 0.140
G27     316.2          22.7                8.7 +/-    1.25      18.0 +/-    1.25  0.040 / 0.050
G29     167.3          24.5               11.5 +/-    2.76      22.8 +/-    2.76  0.050 / 0.050
G32     205.3          13.3               13.6 +/-    1.84      35.3 +/-    1.84  0.140 / 0.390