PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/23-01:13:00
G08     320.3          11.1               -4.6 +/-   29.37     -12.5 +/-   29.37  0.040 / 0.040
G10     314.2          57.0                5.2 +/-    1.67       6.1 +/-    1.67  0.030 / 0.040
G14     212.8          19.5                8.4 +/-    1.67      18.6 +/-    1.67  0.180 / 0.580
G15     45.6           19.4                4.8 +/-    2.23      10.8 +/-    2.23  0.160 / 0.310
G20     13.5           64.0                7.2 +/-    0.71       7.9 +/-    0.71  0.050 / 0.080
G21     118.7          67.9                8.1 +/-    0.70       8.6 +/-    0.70  0.050 / 0.070
G24     87.8           29.4                8.4 +/-    1.77      15.0 +/-    1.77  0.120 / 0.300
G27     290.3          37.1                9.4 +/-    2.15      14.4 +/-    2.15  0.170 / 0.280
G32     214.9          40.1                6.9 +/-    1.32      10.0 +/-    1.32  0.060 / 0.120