PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/27-13:58:10
G02     205.2          34.7                8.6 +/-    1.39      13.8 +/-    1.39  0.080 / 0.100
G06     150.4          72.5                8.1 +/-    0.76       8.5 +/-    0.76  0.070 / 0.110
G12     308.5          17.6                5.1 +/-    2.00      11.9 +/-    2.00  0.040 / 0.040
G17     35.7           49.4                5.0 +/-    0.67       6.4 +/-    0.67  0.050 / 0.040
G19     10.8           62.5                6.2 +/-    0.35       6.9 +/-    0.35  0.050 / 0.040
G24     295.1          38.6                5.8 +/-    1.55       8.6 +/-    1.55  0.050 / 0.040
G28     101.9          35.1                7.4 +/-    0.73      11.7 +/-    0.73  0.040 / 0.020