PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/31-05:58:10
G07     39.1           69.3                3.5 +/-    0.40       3.7 +/-    0.40  0.040 / 0.040
G08     53.8           41.7                2.5 +/-    0.75       3.5 +/-    0.75  0.050 / 0.050
G09     175.2          38.3                5.4 +/-    0.87       8.0 +/-    0.87  0.030 / 0.040
G11     122.4          32.3                5.6 +/-    1.23       9.3 +/-    1.23  0.030 / 0.040
G17     198.4          11.3               -3.1 +/-   17.58      -8.3 +/-   17.58  0.080 / 0.150
G18     106.8          13.8                3.7 +/-    1.86       9.4 +/-    1.86  0.080 / 0.140
G23     161.3          14.7                4.5 +/-    1.91      11.3 +/-    1.91  0.190 / 0.410
G27     38.8           13.4                0.7 +/-    1.23       1.7 +/-    1.23  0.200 / 0.460
G28     266.2          48.4                5.0 +/-    1.02       6.4 +/-    1.02  0.110 / 0.200
G30     324.7          54.4                2.6 +/-    0.84       3.1 +/-    0.84  0.110 / 0.260