PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/15-17:43:00
G08     307.2          19.8               10.0 +/-    2.93      22.1 +/-    2.93  0.070 / 0.100
G10     336.1          60.5                8.2 +/-    0.81       9.3 +/-    0.81  0.080 / 0.080
G14     219.8          33.6               12.3 +/-    1.92      20.0 +/-    1.92  0.050 / 0.070
G18     45.9           57.0                9.2 +/-    0.57      10.7 +/-    0.57  0.050 / 0.080
G21     136.5          48.4               13.5 +/-    1.18      17.4 +/-    1.18  0.040 / 0.050
G24     72.0           30.3                9.8 +/-    0.62      17.0 +/-    0.62  0.040 / 0.040
G27     269.6          37.0               11.4 +/-    0.92      17.5 +/-    0.92  0.050 / 0.140
G32     226.1          54.0               14.3 +/-    2.02      17.2 +/-    2.02  0.050 / 0.130