PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/15-17:12:50
G10     272.5          41.6                9.1 +/-    0.96      12.9 +/-    0.96  0.030 / 0.030
G13     39.8           14.2                5.8 +/-    2.87      14.8 +/-    2.87  0.040 / 0.040
G15     56.0           47.3                8.3 +/-    0.38      10.8 +/-    0.38  0.130 / 0.270
G20     307.4          62.3                9.2 +/-    0.66      10.3 +/-    0.66  0.210 / 0.290
G21     24.0           74.8                9.7 +/-    1.07      10.0 +/-    1.07  0.130 / 0.190
G24     112.4          17.3               10.8 +/-    2.00      25.3 +/-    2.00  0.090 / 0.160
G27     317.3          20.8                5.9 +/-    2.67      12.7 +/-    2.67  0.050 / 0.040
G29     167.7          25.6                8.9 +/-    1.91      17.2 +/-    1.91  0.040 / 0.040
G32     205.0          13.4                9.8 +/-    2.15      25.3 +/-    2.15  0.250 / 0.200