PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/11-05:43:10
G07     4.3            66.1                4.6 +/-    0.74       5.0 +/-    0.74  0.060 / 0.110
G08     70.3           50.0                6.3 +/-    0.41       8.0 +/-    0.41  0.050 / 0.110
G09     180.7          56.0                7.2 +/-    1.15       8.4 +/-    1.15  0.030 / 0.040
G11     134.2          23.0                7.1 +/-    1.19      14.5 +/-    1.19  0.040 / 0.040
G23     159.8          26.7                6.7 +/-    1.51      12.6 +/-    1.51  0.040 / 0.050
G27     42.8           20.6                2.5 +/-    1.11       5.3 +/-    1.11  0.040 / 0.050
G28     252.8          42.1                6.6 +/-    0.92       9.3 +/-    0.92  0.040 / 0.060
G30     315.4          46.4                3.2 +/-    0.89       4.2 +/-    0.89  0.040 / 0.050