PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/29-06:42:30
G07     11.4           67.1                3.9 +/-    0.65       4.2 +/-    0.65  0.060 / 0.110
G08     66.2           48.6                4.3 +/-    0.78       5.5 +/-    0.78  0.040 / 0.140
G09     179.6          52.7                7.2 +/-    0.97       8.8 +/-    0.97  0.040 / 0.040
G11     131.8          24.8                7.0 +/-    2.10      13.7 +/-    2.10  0.040 / 0.060
G23     160.3          24.1                5.1 +/-    2.80      10.3 +/-    2.80  0.030 / 0.040
G27     41.5           18.6                2.3 +/-    0.72       5.3 +/-    0.72  0.030 / 0.050
G28     255.8          43.9                3.9 +/-    1.86       5.3 +/-    1.86  0.040 / 0.030
G30     317.4          47.9                2.3 +/-    0.62       3.0 +/-    0.62  0.040 / 0.050