PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/22-01:43:10
G08     311.5          17.4                8.1 +/-    1.85      18.9 +/-    1.85  0.030 / 0.040
G10     336.9          60.8                9.9 +/-    0.68      11.1 +/-    0.68  0.030 / 0.040
G14     218.1          30.9               12.9 +/-    3.40      22.2 +/-    3.40  0.110 / 0.210
G20     38.7           60.2               10.4 +/-    0.72      11.8 +/-    0.72  0.140 / 0.190
G21     135.3          56.9               14.6 +/-    0.62      17.1 +/-    0.62  0.060 / 0.090
G24     73.5           30.2               12.1 +/-    1.03      21.2 +/-    1.03  0.070 / 0.060
G27     274.5          37.5               10.0 +/-    2.74      15.2 +/-    2.74  0.140 / 0.230
G32     223.5          52.0               13.2 +/-    2.07      16.3 +/-    2.07  0.170 / 0.220