PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/16-00:42:40
G10     275.6          43.9                9.3 +/-    0.76      12.7 +/-    0.76  0.050 / 0.080
G13     38.8           11.7                7.2 +/-    3.19      19.4 +/-    3.19  0.050 / 0.060
G15     52.5           42.5                6.1 +/-    1.09       8.5 +/-    1.09  0.060 / 0.070
G20     311.7          62.7                8.0 +/-    0.70       8.9 +/-    0.70  0.080 / 0.050
G21     22.4           75.3                9.0 +/-    0.69       9.2 +/-    0.69  0.050 / 0.040
G24     115.1          18.3                8.5 +/-    1.53      19.5 +/-    1.53  0.050 / 0.030
G27     315.5          23.6                7.5 +/-    1.74      15.2 +/-    1.74  0.470 / 0.390
G29     167.4          23.2               10.8 +/-    1.54      22.1 +/-    1.54  0.530 / 0.450
G32     205.5          14.3               13.6 +/-    1.86      34.4 +/-    1.86  0.220 / 0.350