PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/13-03:12:50
G07     55.1           68.7                6.5 +/-    0.71       6.9 +/-    0.71  0.030 / 0.040
G08     50.0           38.1                4.0 +/-    0.66       6.0 +/-    0.66  0.030 / 0.040
G09     176.4          35.5                8.2 +/-    1.01      12.9 +/-    1.01  0.200 / 0.300
G11     117.5          35.1                7.9 +/-    0.87      12.6 +/-    0.87  0.160 / 0.320
G17     198.6          16.0                5.3 +/-    2.16      12.8 +/-    2.16  0.080 / 0.230
G18     101.6          16.0                7.2 +/-    1.36      17.5 +/-    1.36  0.080 / 0.240
G23     161.5          10.7                4.9 +/-    1.50      13.5 +/-    1.50  0.250 / 0.340
G27     37.9           10.4                4.8 +/-    2.73      13.2 +/-    2.73  0.200 / 0.350
G28     271.9          50.6                6.0 +/-    0.93       7.6 +/-    0.93  0.040 / 0.040
G30     329.5          58.4                4.0 +/-    0.86       4.6 +/-    0.86  0.040 / 0.040