PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/28-21:12:50
G08     272.2          20.9               11.4 +/-    2.03      24.6 +/-    2.03  0.050 / 0.060
G10     48.4           60.4               10.0 +/-    0.49      11.4 +/-    0.49  0.050 / 0.040
G14     252.8          61.8               11.3 +/-    0.69      12.7 +/-    0.69  0.360 / 0.240
G18     314.9          27.6                7.9 +/-    0.99      14.6 +/-    0.99  0.240 / 0.270
G20     88.3           41.1                9.1 +/-    0.97      13.0 +/-    0.97  0.080 / 0.230
G21     153.1          20.9                9.8 +/-    1.31      21.1 +/-    1.31  0.140 / 0.240
G24     41.1           12.0                7.5 +/-    2.91      20.0 +/-    2.91  0.270 / 0.310
G27     238.8          20.9               11.7 +/-    1.24      25.1 +/-    1.24  0.100 / 0.250
G31     180.4          22.5               13.2 +/-    2.42      27.4 +/-    2.42  0.130 / 0.290
G32     312.1          76.3               10.0 +/-    0.68      10.3 +/-    0.68  0.120 / 0.330