PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/08-23:58:00
G10     310.2          56.1                9.0 +/-    0.61      10.6 +/-    0.61  0.050 / 0.080
G14     212.0          16.9               13.3 +/-    2.45      31.6 +/-    2.45  0.050 / 0.080
G15     45.6           21.9                6.0 +/-    0.85      12.6 +/-    0.85  0.110 / 0.290
G20     9.0            64.4                8.3 +/-    0.41       9.1 +/-    0.41  0.080 / 0.260
G21     113.6          70.0               10.0 +/-    1.03      10.6 +/-    1.03  0.030 / 0.040
G24     90.9           28.9                8.4 +/-    0.59      15.0 +/-    0.59  0.030 / 0.040
G27     293.2          36.6                9.1 +/-    1.11      14.0 +/-    1.11  0.040 / 0.040
G32     213.4          38.2               12.0 +/-    1.78      17.9 +/-    1.78  0.040 / 0.040