PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/25-19:12:50
G01     64.6           31.9               11.4 +/-    0.37      19.2 +/-    0.37  0.090 / 0.390
G07     140.4          26.5               14.8 +/-    0.61      28.0 +/-    0.61  0.120 / 0.350
G11     50.7           27.5               10.3 +/-    1.82      19.1 +/-    1.82  0.060 / 0.110
G13     267.7          36.5               15.2 +/-    1.85      23.4 +/-    1.85  0.050 / 0.120
G15     298.4          15.8               11.6 +/-    1.81      28.3 +/-    1.81  0.040 / 0.050
G17     242.9          70.8               15.0 +/-    0.68      15.8 +/-    0.68  0.040 / 0.040
G18     45.2           15.6                9.9 +/-    1.68      24.3 +/-    1.68  0.100 / 0.200
G19     228.5          45.3               13.9 +/-    2.74      18.6 +/-    2.74  0.080 / 0.180
G28     29.2           57.8               12.0 +/-    0.66      13.9 +/-    0.66  0.030 / 0.040
G30     140.5          55.9               13.5 +/-    0.89      16.0 +/-    0.89  0.030 / 0.040