PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/26-18:27:40
G08     266.5          17.4               11.3 +/-    1.89      26.6 +/-    1.89  0.210 / 0.240
G10     63.1           58.3               10.6 +/-    0.86      12.2 +/-    0.86  0.130 / 0.240
G11     311.2          17.3                9.3 +/-    2.16      21.9 +/-    2.16  0.070 / 0.090
G14     270.4          66.9               11.3 +/-    0.75      12.1 +/-    0.75  0.070 / 0.090
G18     94.3           33.7               10.6 +/-    1.31      17.3 +/-    1.31  0.070 / 0.340
G24     39.6           10.0                8.4 +/-    4.51      23.6 +/-    4.51  0.140 / 0.320
G27     229.6          14.5               12.7 +/-    1.52      31.9 +/-    1.52  0.040 / 0.050
G31     179.0          30.8               13.4 +/-    0.90      23.1 +/-    0.90  0.030 / 0.040
G32     341.4          73.5               11.3 +/-    0.36      11.7 +/-    0.36  0.030 / 0.030