PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/09-01:57:40
G08     273.2          18.5                7.6 +/-    1.54      17.4 +/-    1.54  0.130 / 0.320
G10     60.3           57.6                7.6 +/-    0.65       8.8 +/-    0.65  0.140 / 0.270
G14     261.0          64.4                7.7 +/-    0.91       8.4 +/-    0.91  0.040 / 0.060
G18     313.3          31.2                8.7 +/-    1.84      14.9 +/-    1.84  0.040 / 0.060
G20     94.1           37.6                7.3 +/-    0.46      11.0 +/-    0.46  0.140 / 0.360
G21     155.1          17.8                8.4 +/-    2.51      19.4 +/-    2.51  0.120 / 0.340
G24     40.8           11.5                5.9 +/-    1.18      16.0 +/-    1.18  0.130 / 0.190
G27     233.3          17.4               10.8 +/-    1.92      25.3 +/-    1.92  0.150 / 0.200
G31     177.4          29.9               11.0 +/-    1.34      19.4 +/-    1.34  0.030 / 0.040
G32     330.4          75.1                8.8 +/-    0.85       9.1 +/-    0.85  0.030 / 0.040