PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/02-00:27:50
G10     311.1          56.3               10.4 +/-    0.34      12.2 +/-    0.34  0.060 / 0.080
G14     212.2          17.6               13.8 +/-    2.68      32.2 +/-    2.68  0.060 / 0.090
G15     45.6           21.2                6.1 +/-    1.13      13.1 +/-    1.13  0.040 / 0.030
G20     9.9            64.3                9.5 +/-    0.40      10.4 +/-    0.40  0.040 / 0.040
G21     114.9          69.5               10.9 +/-    1.03      11.5 +/-    1.03  0.130 / 0.340
G24     90.1           29.0                8.7 +/-    1.19      15.6 +/-    1.19  0.130 / 0.430
G27     292.5          36.8               10.9 +/-    1.54      16.8 +/-    1.54  0.040 / 0.040
G32     213.8          38.6               13.2 +/-    0.85      19.6 +/-    0.85  0.030 / 0.050