PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/11-19:12:40
G08     273.3          20.2               11.6 +/-    2.16      25.4 +/-    2.16  0.290 / 0.250
G10     48.4           61.0                8.0 +/-    0.80       9.0 +/-    0.80  0.240 / 0.300
G11     315.4          12.9                7.4 +/-    3.56      19.4 +/-    3.56  0.240 / 0.240
G14     255.2          62.6               10.2 +/-    0.69      11.3 +/-    0.69  0.200 / 0.160
G18     86.9           38.6               10.2 +/-    0.65      15.2 +/-    0.65  0.140 / 0.180
G21     151.9          16.0               10.5 +/-    2.34      25.5 +/-    2.34  0.090 / 0.140
G24     42.9           15.4                8.1 +/-    1.51      20.1 +/-    1.51  0.030 / 0.010
G27     235.2          19.5               11.2 +/-    3.99      25.1 +/-    3.99  0.030 / 0.020
G31     180.8          22.7               12.4 +/-    2.29      25.6 +/-    2.29  0.140 / 0.310
G32     310.4          75.7                8.7 +/-    0.58       9.0 +/-    0.58  0.120 / 0.330