PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/25-06:42:50
G07     309.4          48.0                5.1 +/-    1.48       6.6 +/-    1.48  0.100 / 0.210
G08     123.3          42.3                8.1 +/-    1.15      11.4 +/-    1.15  0.080 / 0.200
G09     263.1          85.7                4.5 +/-    0.60       4.5 +/-    0.60  0.050 / 0.060
G16     42.3           21.4                2.2 +/-    1.18       4.6 +/-    1.18  0.040 / 0.080
G23     146.1          63.3                7.4 +/-    1.12       8.2 +/-    1.12  0.100 / 0.250
G27     78.7           37.7                6.2 +/-    0.39       9.3 +/-    0.39  0.110 / 0.230
G28     224.8          13.0                4.0 +/-    2.82      10.5 +/-    2.82  0.050 / 0.060
G30     286.4          21.7                3.2 +/-    2.28       6.8 +/-    2.28  0.040 / 0.060