PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/21-21:42:40
G08     271.6          20.7               10.0 +/-    1.59      21.7 +/-    1.59  0.070 / 0.100
G10     49.6           60.3               11.2 +/-    0.61      12.7 +/-    0.61  0.060 / 0.120
G14     253.8          62.1               12.5 +/-    1.00      13.9 +/-    1.00  0.080 / 0.220
G18     314.7          28.0               11.4 +/-    2.26      20.7 +/-    2.26  0.110 / 0.240
G20     88.9           40.8               12.8 +/-    0.52      18.5 +/-    0.52  0.240 / 0.220
G21     153.3          20.6               14.4 +/-    1.12      31.3 +/-    1.12  0.160 / 0.250
G24     40.9           11.7               10.7 +/-    2.01      28.8 +/-    2.01  0.040 / 0.060
G27     238.2          20.5               13.7 +/-    1.15      29.7 +/-    1.15  0.040 / 0.050
G31     180.1          23.3               14.8 +/-    2.45      30.1 +/-    2.45  0.090 / 0.290
G32     315.6          76.3               12.2 +/-    0.65      12.5 +/-    0.65  0.100 / 0.280