PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/25-21:58:00
G01     320.0          15.5                8.4 +/-    2.47      20.5 +/-    2.47  0.110 / 0.300
G08     258.1          14.7               12.0 +/-    1.84      30.0 +/-    1.84  0.200 / 0.280
G10     75.4           54.3                9.0 +/-    0.36      10.9 +/-    0.36  0.200 / 0.400
G11     304.7          22.4                8.1 +/-    1.70      16.8 +/-    1.70  0.210 / 0.390
G14     287.6          70.0               11.1 +/-    0.85      11.7 +/-    0.85  0.040 / 0.040
G18     306.2          39.8               11.3 +/-    1.37      16.5 +/-    1.37  0.040 / 0.050
G20     102.8          31.1               11.8 +/-    1.01      20.1 +/-    1.01  0.130 / 0.290
G27     227.5          11.1               12.6 +/-    3.91      34.4 +/-    3.91  0.110 / 0.290
G31     177.5          38.0               14.0 +/-    2.40      21.1 +/-    2.40  0.070 / 0.240
G32     2.4            69.3               11.2 +/-    0.89      11.9 +/-    0.89  0.090 / 0.220