PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/10-19:12:50
G01     98.3           29.5               14.5 +/-    1.30      25.6 +/-    1.30  0.180 / 0.320
G07     118.0          52.1               14.0 +/-    0.34      17.2 +/-    0.34  0.130 / 0.210
G08     42.0           15.7                9.4 +/-    2.63      23.1 +/-    2.63  0.030 / 0.040
G11     78.8           42.5               13.2 +/-    1.14      18.5 +/-    1.14  0.030 / 0.030
G13     302.4          33.1               11.5 +/-    2.05      18.9 +/-    2.05  0.030 / 0.050
G17     210.8          42.9               16.1 +/-    0.84      22.4 +/-    0.84  0.030 / 0.050
G18     71.7           24.8               12.6 +/-    0.73      24.8 +/-    0.73  0.100 / 0.120
G19     211.9          19.4               17.5 +/-    2.37      39.2 +/-    2.37  0.060 / 0.110
G28     335.4          61.8               11.5 +/-    0.36      12.9 +/-    0.36  0.070 / 0.130
G30     75.6           78.9               14.8 +/-    0.78      15.1 +/-    0.78  0.070 / 0.170