PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/11-03:27:50
G07     350.3          63.2                4.2 +/-    1.27       4.7 +/-    1.27  0.060 / 0.130
G08     81.2           52.1                4.7 +/-    0.70       5.8 +/-    0.70  0.050 / 0.110
G09     183.8          63.4                7.2 +/-    0.92       8.0 +/-    0.92  0.040 / 0.040
G11     139.5          18.9                6.0 +/-    2.33      13.6 +/-    2.33  0.040 / 0.040
G23     158.5          32.4                6.2 +/-    1.03      10.3 +/-    1.03  0.030 / 0.050
G27     46.5           25.0                4.2 +/-    1.35       8.2 +/-    1.35  0.030 / 0.050
G28     246.4          37.8                9.2 +/-    1.70      13.9 +/-    1.70  0.030 / 0.030
G30     311.0          43.0                4.9 +/-    0.72       6.8 +/-    0.72  0.030 / 0.030