PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/13-17:12:50
G08     267.7          17.6                7.2 +/-    1.79      16.7 +/-    1.79  0.140 / 0.160
G10     62.0           58.5                8.0 +/-    0.51       9.2 +/-    0.51  0.120 / 0.180
G11     312.0          16.5                6.9 +/-    2.65      16.6 +/-    2.65  0.210 / 0.400
G14     268.3          66.2                8.9 +/-    0.82       9.6 +/-    0.82  0.260 / 0.320
G18     93.9           33.8                8.6 +/-    0.64      13.9 +/-    0.64  0.180 / 0.310
G21     153.5          11.0               10.7 +/-    1.85      29.3 +/-    1.85  0.160 / 0.300
G24     39.8           10.3                8.1 +/-    2.21      22.3 +/-    2.21  0.120 / 0.110
G27     230.2          14.9                8.2 +/-    1.43      20.4 +/-    1.43  0.040 / 0.120
G31     178.6          30.8               14.3 +/-    2.20      24.6 +/-    2.20  0.040 / 0.050
G32     341.2          73.7                8.7 +/-    0.64       9.0 +/-    0.64  0.030 / 0.050