PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/22-05:57:30
G07     354.6          64.4                5.0 +/-    1.34       5.5 +/-    1.34  0.050 / 0.080
G08     75.9           50.7                8.3 +/-    0.62      10.4 +/-    0.62  0.060 / 0.080
G09     175.8          56.7                9.9 +/-    1.36      11.6 +/-    1.36  0.030 / 0.040
G11     136.8          21.1                7.6 +/-    1.81      16.2 +/-    1.81  0.030 / 0.040
G23     159.3          31.8                8.4 +/-    2.59      14.2 +/-    2.59  0.070 / 0.120
G27     47.1           26.3                6.2 +/-    2.15      11.7 +/-    2.15  0.080 / 0.110
G28     246.5          36.8                7.4 +/-    3.23      11.3 +/-    3.23  0.050 / 0.120
G30     309.8          41.3                3.9 +/-    1.79       5.6 +/-    1.79  0.050 / 0.110