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               11.4 +/-    3.20      24.6 +/-    3.20  0.040 / 0.050
G10     49.6           60.3               11.5 +/-    0.71      13.0 +/-    0.71  0.040 / 0.050
G14     253.8          62.1               12.1 +/-    0.82      13.5 +/-    0.82  0.080 / 0.180
G18     314.7          28.0               10.4 +/-    2.57      19.0 +/-    2.57  0.120 / 0.190
G20     88.9           40.8               11.3 +/-    1.03      16.3 +/-    1.03  0.130 / 0.250
G21     153.3          20.6               13.6 +/-    1.66      29.6 +/-    1.66  0.100 / 0.330
G24     40.9           11.7               10.0 +/-    1.24      27.0 +/-    1.24  0.220 / 0.250
G27     238.2          20.5               13.5 +/-    0.96      29.4 +/-    0.96  0.170 / 0.270
G31     180.1          23.3               14.4 +/-    2.01      29.2 +/-    2.01  0.120 / 0.330
G32     315.6          76.3               11.0 +/-    0.71      11.3 +/-    0.71  0.170 / 0.370