PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/15-18:27:50
G01     110.0          24.0               13.3 +/-    2.05      26.5 +/-    2.05  0.080 / 0.130
G07     101.6          60.9               14.3 +/-    0.94      16.1 +/-    0.94  0.060 / 0.120
G08     42.7           25.1               11.7 +/-    1.09      22.8 +/-    1.09  0.030 / 0.040
G09     175.5          16.4               14.3 +/-    2.53      34.4 +/-    2.53  0.030 / 0.040
G11     94.4           42.8               14.7 +/-    0.61      20.5 +/-    0.61  0.040 / 0.080
G13     311.9          26.6               14.4 +/-    1.58      27.1 +/-    1.58  0.040 / 0.080
G17     205.6          31.8               14.5 +/-    1.85      24.4 +/-    1.85  0.040 / 0.060
G18     84.0           23.9               11.8 +/-    0.65      23.6 +/-    0.65  0.040 / 0.060
G28     312.5          60.5               14.0 +/-    0.66      15.9 +/-    0.66  0.030 / 0.040
G30     15.7           76.7               15.3 +/-    0.44      15.7 +/-    0.44  0.040 / 0.040