PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/16-20:27:50
G01     48.0           23.9               10.1 +/-    0.81      20.1 +/-    0.81  0.110 / 0.280
G06     176.6          28.5               15.0 +/-    1.09      27.1 +/-    1.09  0.100 / 0.250
G07     147.2          10.4               18.2 +/-    4.42      50.3 +/-    4.42  0.060 / 0.080
G11     44.3           13.6                9.2 +/-    2.39      23.8 +/-    2.39  0.070 / 0.080
G13     247.9          28.8               12.8 +/-    1.36      23.0 +/-    1.36  0.080 / 0.270
G15     281.6          15.1               10.0 +/-    2.06      24.9 +/-    2.06  0.100 / 0.260
G17     311.7          77.4               13.3 +/-    1.01      13.6 +/-    1.01  0.040 / 0.050
G19     250.4          60.6               13.8 +/-    0.92      15.6 +/-    0.92  0.040 / 0.050
G28     56.8           51.6               11.7 +/-    0.75      14.5 +/-    0.75  0.040 / 0.070
G30     150.7          37.8               14.9 +/-    1.20      22.4 +/-    1.20  0.030 / 0.080