PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/27-22:42:40
G01     320.2          13.8                8.6 +/-    3.01      22.0 +/-    3.01  0.140 / 0.370
G08     260.9          15.6               13.3 +/-    2.51      32.7 +/-    2.51  0.160 / 0.360
G10     70.6           56.5               10.0 +/-    0.90      11.7 +/-    0.90  0.110 / 0.260
G11     306.9          21.2               10.3 +/-    3.84      22.0 +/-    3.84  0.110 / 0.300
G14     284.4          69.8               11.3 +/-    0.42      12.0 +/-    0.42  0.020 / 0.020
G18     97.6           31.9               11.8 +/-    0.76      19.9 +/-    0.76  0.030 / 0.030
G27     226.3          11.6               14.5 +/-    3.39      39.1 +/-    3.39  0.050 / 0.060
G31     180.6          32.7               11.7 +/-    1.20      19.3 +/-    1.20  0.040 / 0.060
G32     347.7          71.8               10.2 +/-    0.53      10.7 +/-    0.53  0.150 / 0.270