PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/13-20:27:50
G01     306.8          33.3               10.3 +/-    1.15      16.8 +/-    1.15  0.060 / 0.150
G10     106.2          40.4               10.5 +/-    0.69      15.1 +/-    0.69  0.080 / 0.160
G11     282.2          28.2               10.1 +/-    0.99      18.3 +/-    0.99  0.060 / 0.100
G14     358.2          66.6               10.1 +/-    0.50      10.9 +/-    0.50  0.070 / 0.110
G18     117.8          12.6               13.2 +/-    1.63      34.6 +/-    1.63  0.030 / 0.030
G22     309.6          25.5                9.4 +/-    0.95      18.2 +/-    0.95  0.030 / 0.040
G25     81.5           16.7               10.4 +/-    1.12      24.7 +/-    1.12  0.070 / 0.260
G31     170.1          64.0               13.2 +/-    0.65      14.6 +/-    0.65  0.100 / 0.270
G32     35.4           53.0                9.6 +/-    0.43      11.7 +/-    0.43  0.040 / 0.060