PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/23-18:42:40
G10     270.3          40.4               10.4 +/-    1.54      15.1 +/-    1.54  0.150 / 0.200
G13     40.5           15.7               10.2 +/-    4.31      24.9 +/-    4.31  0.170 / 0.280
G15     58.5           49.7                6.9 +/-    0.99       8.7 +/-    0.99  0.050 / 0.040
G16     276.4          11.2                6.8 +/-    5.03      18.4 +/-    5.03  0.040 / 0.040
G20     303.4          61.6                8.7 +/-    0.87       9.8 +/-    0.87  0.190 / 0.730
G21     14.4           73.8               10.3 +/-    1.00      10.7 +/-    1.00  0.160 / 0.610
G24     114.7          16.2               12.9 +/-    1.17      31.1 +/-    1.17  0.150 / 0.510
G27     318.0          19.7                9.1 +/-    0.90      20.2 +/-    0.90  0.140 / 0.500
G29     167.9          28.1               10.7 +/-    0.84      19.6 +/-    0.84  0.100 / 0.200
G32     204.6          12.1               11.6 +/-    1.52      30.9 +/-    1.52  0.110 / 0.220