PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/02-11:28:30
G01     59.2           30.0                5.0 +/-    0.73       8.8 +/-    0.73  0.030 / 0.060
G06     181.0          14.7                7.1 +/-    1.79      17.8 +/-    1.79  0.030 / 0.060
G07     142.4          19.7                6.7 +/-    1.33      14.8 +/-    1.33  0.080 / 0.320
G11     47.5           21.4                2.7 +/-    0.87       5.8 +/-    0.87  0.080 / 0.350
G13     263.9          34.6                7.6 +/-    1.07      12.2 +/-    1.07  0.120 / 0.110
G15     294.0          16.3                2.1 +/-    1.33       5.0 +/-    1.33  0.050 / 0.210
G17     270.9          78.9                6.9 +/-    0.66       7.1 +/-    0.66  0.080 / 0.320
G19     234.3          53.5                7.8 +/-    0.68       9.5 +/-    0.68  0.120 / 0.320
G28     37.9           56.1                4.4 +/-    0.34       5.2 +/-    0.34  0.030 / 0.030
G30     143.9          52.5                8.3 +/-    0.63      10.2 +/-    0.63  0.030 / 0.030