PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/31-00:27:30
G07     324.3          55.1                4.1 +/-    0.41       4.9 +/-    0.41  0.040 / 0.050
G08     108.8          48.3                7.6 +/-    0.46       9.8 +/-    0.46  0.030 / 0.050
G09     207.7          81.3                4.8 +/-    0.41       4.8 +/-    0.41  0.020 / 0.030
G16     44.2           15.5                2.7 +/-    3.33       6.6 +/-    3.33  0.030 / 0.040
G23     152.9          53.4                6.7 +/-    0.62       8.1 +/-    0.62  0.040 / 0.050
G27     67.4           37.1                6.0 +/-    0.94       9.2 +/-    0.94  0.050 / 0.040
G28     230.4          20.1                5.4 +/-    2.34      11.9 +/-    2.34  0.180 / 0.310
G30     294.4          28.4                3.9 +/-    2.03       7.1 +/-    2.03  0.220 / 0.310