PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/17-06:13:00
G01     124.3          12.1                5.1 +/-    2.61      13.7 +/-    2.61  0.030 / 0.040
G07     58.8           68.9                4.8 +/-    0.50       5.2 +/-    0.50  0.040 / 0.040
G08     50.3           39.6                4.0 +/-    1.20       5.8 +/-    1.20  0.110 / 0.310
G09     176.2          33.5                7.0 +/-    1.19      11.4 +/-    1.19  0.080 / 0.360
G11     119.9          36.9                7.1 +/-    0.73      10.9 +/-    0.73  0.030 / 0.030
G13     320.3          13.8                3.4 +/-    2.42       8.8 +/-    2.42  0.030 / 0.040
G17     199.7          14.9                6.1 +/-    2.22      15.1 +/-    2.22  0.080 / 0.110
G28     269.6          47.2                6.2 +/-    2.42       8.1 +/-    2.42  0.100 / 0.100
G30     330.2          59.4                4.3 +/-    0.75       4.9 +/-    0.75  0.110 / 0.100