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                9.8 +/-    1.77      19.7 +/-    1.77  0.110 / 0.310
G06     176.6          28.5               13.8 +/-    1.84      25.0 +/-    1.84  0.090 / 0.270
G07     147.2          10.4               15.9 +/-    1.84      44.0 +/-    1.84  0.070 / 0.080
G11     44.3           13.6                9.3 +/-    1.63      23.8 +/-    1.63  0.060 / 0.060
G13     247.9          28.8               13.3 +/-    1.70      23.9 +/-    1.70  0.190 / 0.360
G15     281.6          15.1                8.3 +/-    2.11      20.7 +/-    2.11  0.240 / 0.480
G17     311.7          77.4               12.8 +/-    0.36      13.0 +/-    0.36  0.030 / 0.050
G19     250.4          60.6               13.2 +/-    0.55      14.9 +/-    0.55  0.030 / 0.060
G28     56.8           51.6               11.4 +/-    0.68      14.2 +/-    0.68  0.080 / 0.140
G30     150.7          37.8               14.1 +/-    1.81      21.3 +/-    1.81  0.080 / 0.130