PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/21-16:42:50
G10     269.7          40.1                8.4 +/-    1.01      12.1 +/-    1.01  0.340 / 0.380
G13     40.7           16.1                3.3 +/-    2.51       8.1 +/-    2.51  0.310 / 0.360
G15     58.2           48.9                7.5 +/-    0.60       9.6 +/-    0.60  0.150 / 0.260
G16     277.7          11.3                7.1 +/-    2.60      19.1 +/-    2.60  0.120 / 0.250
G20     302.4          61.4                8.2 +/-    0.85       9.2 +/-    0.85  0.040 / 0.030
G21     16.8           73.8                8.9 +/-    0.80       9.2 +/-    0.80  0.040 / 0.030
G24     114.4          16.0               10.4 +/-    1.88      25.3 +/-    1.88  0.130 / 0.130
G27     318.5          18.9                7.5 +/-    1.46      17.0 +/-    1.46  0.140 / 0.120
G29     167.4          28.0                9.6 +/-    1.39      17.5 +/-    1.39  0.120 / 0.120
G32     204.7          11.0               -9.1 +/-   33.07     -24.8 +/-   33.07  0.100 / 0.100