PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/24-23:57:50
G10     271.3          41.8               13.8 +/-    0.88      19.5 +/-    0.88  0.230 / 0.210
G13     40.0           14.6                8.7 +/-    3.41      21.9 +/-    3.41  0.210 / 0.200
G15     55.5           45.8                9.7 +/-    0.84      12.9 +/-    0.84  0.040 / 0.050
G16     276.4          11.3                9.1 +/-   10.50      24.7 +/-   10.50  0.040 / 0.040
G20     303.9          61.3               10.7 +/-    0.59      12.0 +/-    0.59  0.130 / 0.430
G21     10.3           73.4               12.1 +/-    0.66      12.5 +/-    0.66  0.160 / 0.250
G24     118.4          16.2               13.2 +/-    1.65      31.8 +/-    1.65  0.040 / 0.060
G27     317.5          20.9                9.2 +/-    1.87      19.9 +/-    1.87  0.040 / 0.050
G29     167.2          27.2               13.7 +/-    2.00      25.4 +/-    2.00  0.240 / 0.320
G32     204.8          11.2               -5.7 +/-   42.13     -15.6 +/-   42.13  0.200 / 0.360