PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/29-00:42:40
G10     310.1          56.0                7.8 +/-    1.61       9.2 +/-    1.61  0.070 / 0.100
G14     211.9          17.1               14.2 +/-    2.01      33.6 +/-    2.01  0.070 / 0.080
G15     45.6           21.7                7.3 +/-    2.45      15.5 +/-    2.45  0.030 / 0.040
G20     8.2            64.5                9.3 +/-    0.37      10.2 +/-    0.37  0.040 / 0.040
G21     113.6          70.0               10.5 +/-    0.80      11.1 +/-    0.80  0.160 / 0.260
G24     90.8           28.9                9.2 +/-    1.22      16.4 +/-    1.22  0.130 / 0.410
G27     293.3          36.6               10.5 +/-    1.74      16.2 +/-    1.74  0.160 / 0.240
G32     213.5          37.9               11.3 +/-    1.60      17.0 +/-    1.60  0.210 / 0.170