PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/07-04:58:10
G01     245.2          32.3                7.9 +/-    1.25      13.3 +/-    1.25  0.080 / 0.280
G03     314.7          46.3                8.7 +/-    0.50      11.6 +/-    0.50  0.150 / 0.220
G14     66.8           36.3                6.6 +/-    1.43      10.2 +/-    1.43  0.030 / 0.020
G16     162.6          21.8               10.0 +/-    3.57      21.0 +/-    3.57  0.030 / 0.030
G22     296.7          70.2                7.0 +/-    0.41       7.3 +/-    0.41  0.100 / 0.100
G23     289.8          21.1                9.3 +/-    3.17      20.0 +/-    3.17  0.110 / 0.120
G26     134.9          41.3               10.5 +/-    0.60      14.9 +/-    0.60  0.040 / 0.040
G31     39.6           55.1                7.0 +/-    0.72       8.4 +/-    0.72  0.030 / 0.040
G32     80.7           21.7                6.7 +/-    2.52      14.2 +/-    2.52  0.100 / 0.250