PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/12-23:42:30
G10     311.2          56.3                9.5 +/-    0.52      11.2 +/-    0.52  0.060 / 0.090
G14     212.2          17.3               10.6 +/-    1.08      25.0 +/-    1.08  0.060 / 0.070
G15     45.6           21.5                6.6 +/-    0.72      14.1 +/-    0.72  0.080 / 0.310
G20     10.7           64.2                8.5 +/-    0.41       9.4 +/-    0.41  0.110 / 0.350
G21     114.9          69.6               10.5 +/-    1.16      11.1 +/-    1.16  0.030 / 0.040
G24     90.3           29.1                9.4 +/-    0.39      16.8 +/-    0.39  0.030 / 0.040
G27     292.4          36.8                9.9 +/-    1.51      15.2 +/-    1.51  0.050 / 0.040
G32     213.7          38.9               11.8 +/-    0.91      17.5 +/-    0.91  0.040 / 0.040