PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/07-19:43:00
G08     267.1          18.0                8.7 +/-    1.87      20.1 +/-    1.87  0.120 / 0.250
G10     60.7           58.9                7.8 +/-    0.58       8.9 +/-    0.58  0.280 / 0.280
G11     311.7          17.0                8.8 +/-    2.00      20.9 +/-    2.00  0.120 / 0.190
G14     268.2          66.6                8.1 +/-    0.90       8.7 +/-    0.90  0.100 / 0.210
G18     92.9           34.8                9.3 +/-    1.28      14.8 +/-    1.28  0.070 / 0.110
G21     153.0          10.4               11.7 +/-    3.07      32.5 +/-    3.07  0.060 / 0.090
G24     40.1           11.0                8.8 +/-    3.35      24.1 +/-    3.35  0.030 / 0.020
G27     230.5          15.3               11.3 +/-    1.15      27.8 +/-    1.15  0.030 / 0.020
G31     179.9          28.8               10.0 +/-    1.37      18.0 +/-    1.37  0.210 / 0.500
G32     334.9          74.1                8.0 +/-    0.25       8.3 +/-    0.25  0.170 / 0.430