PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/16-16:42:50
G08     275.7          20.3                6.7 +/-    2.36      14.7 +/-    2.36  0.300 / 0.420
G10     46.0           61.2                6.7 +/-    0.91       7.6 +/-    0.91  0.260 / 0.310
G11     316.7          11.1               -2.8 +/-   10.79      -7.5 +/-   10.79  0.180 / 0.270
G14     252.3          60.8                9.0 +/-    0.38      10.2 +/-    0.38  0.180 / 0.300
G18     86.1           38.8                6.6 +/-    0.54       9.7 +/-    0.54  0.130 / 0.180
G21     152.1          18.8                8.1 +/-    1.41      18.5 +/-    1.41  0.090 / 0.140
G24     43.5           16.0                5.7 +/-    2.36      13.7 +/-    2.36  0.080 / 0.170
G27     236.3          20.3                8.3 +/-    2.30      18.0 +/-    2.30  0.110 / 0.170
G31     180.1          22.7               10.2 +/-    2.58      20.9 +/-    2.58  0.040 / 0.040
G32     309.3          76.1                8.0 +/-    0.41       8.2 +/-    0.41  0.040 / 0.050