PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/25-15:58:10
G02     204.1          33.4               13.3 +/-    1.10      21.8 +/-    1.10  0.050 / 0.100
G06     158.7          70.1               12.8 +/-    0.38      13.6 +/-    0.38  0.070 / 0.100
G12     308.6          16.5                9.5 +/-    3.48      22.8 +/-    3.48  0.160 / 0.330
G17     39.6           46.2               10.7 +/-    0.69      14.2 +/-    0.69  0.190 / 0.300
G19     8.8            63.5               10.9 +/-    0.42      12.0 +/-    0.42  0.040 / 0.060
G24     298.7          37.5               11.3 +/-    1.78      17.1 +/-    1.78  0.030 / 0.050
G28     104.0          30.1               11.5 +/-    0.90      20.1 +/-    0.90  0.080 / 0.180