PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/28-19:27:50
G01     52.0           26.8               13.3 +/-    1.37      24.9 +/-    1.37  0.110 / 0.430
G06     177.5          23.8               21.0 +/-    1.10      42.2 +/-    1.10  0.160 / 0.360
G07     145.6          14.9               19.5 +/-    3.63      48.6 +/-    3.63  0.150 / 0.240
G11     45.4           17.5               11.3 +/-    1.25      26.4 +/-    1.25  0.140 / 0.340
G13     253.0          31.6               18.2 +/-    1.36      30.8 +/-    1.36  0.040 / 0.070
G15     286.6          15.8               14.8 +/-    2.53      36.1 +/-    2.53  0.050 / 0.070
G17     289.5          77.7               17.6 +/-    0.86      18.0 +/-    0.86  0.090 / 0.250
G19     242.5          56.3               19.6 +/-    0.80      23.1 +/-    0.80  0.090 / 0.270
G28     49.4           53.7               15.0 +/-    0.25      18.1 +/-    0.25  0.030 / 0.030
G30     148.6          43.2               18.1 +/-    1.39      25.0 +/-    1.39  0.030 / 0.030