PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/24-18:12:40
G08     276.8          21.0               10.1 +/-    3.05      21.7 +/-    3.05  0.080 / 0.130
G10     42.0           61.7               10.7 +/-    0.91      11.9 +/-    0.91  0.220 / 0.210
G14     249.7          60.0               12.2 +/-    0.90      13.9 +/-    0.90  0.110 / 0.150
G18     83.9           40.3               11.1 +/-    1.19      16.1 +/-    1.19  0.100 / 0.190
G21     151.3          19.4               12.5 +/-    1.65      28.0 +/-    1.65  0.130 / 0.210
G24     44.6           17.4               10.3 +/-    2.01      24.2 +/-    2.01  0.260 / 0.150
G27     237.7          21.6               10.7 +/-    2.15      22.6 +/-    2.15  0.040 / 0.040
G31     181.1          20.2               14.7 +/-    3.44      32.3 +/-    3.44  0.030 / 0.040
G32     298.3          75.8               12.2 +/-    0.32      12.6 +/-    0.32  0.020 / 0.020