PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/12-00:57:40
G10     274.9          43.6                9.7 +/-    1.39      13.4 +/-    1.39  0.070 / 0.130
G13     39.0           12.2                7.6 +/-    2.26      20.2 +/-    2.26  0.150 / 0.110
G15     52.9           43.0                8.5 +/-    1.02      11.8 +/-    1.02  0.050 / 0.090
G20     310.5          62.5                9.8 +/-    0.84      10.9 +/-    0.84  0.100 / 0.060
G21     20.5           75.0               10.2 +/-    0.86      10.5 +/-    0.86  0.050 / 0.030
G24     115.6          17.9               10.5 +/-    1.39      24.4 +/-    1.39  0.050 / 0.040
G27     315.9          23.1                8.0 +/-    1.40      16.3 +/-    1.40  0.090 / 0.310
G29     167.3          23.7               12.5 +/-    2.01      25.1 +/-    2.01  0.250 / 0.330
G32     205.5          13.6               13.0 +/-    6.17      33.3 +/-    6.17  0.050 / 0.050