PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/05-07:58:00
G07     349.6          62.9                3.3 +/-    1.51       3.7 +/-    1.51  0.090 / 0.170
G08     82.3           51.6                6.2 +/-    0.91       7.6 +/-    0.91  0.060 / 0.160
G09     181.4          63.8                7.7 +/-    1.72       8.5 +/-    1.72  0.070 / 0.100
G11     139.0          18.0                4.2 +/-    1.25       9.7 +/-    1.25  0.080 / 0.120
G23     158.3          35.1                6.5 +/-    2.89      10.3 +/-    2.89  0.030 / 0.040
G27     47.7           26.0                5.9 +/-    2.02      11.3 +/-    2.02  0.040 / 0.060
G28     244.6          36.3                8.9 +/-    1.26      13.9 +/-    1.26  0.040 / 0.050
G30     307.9          39.7                3.8 +/-    1.04       5.6 +/-    1.04  0.030 / 0.050