PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/04-17:57:50
G10     272.4          41.5               11.1 +/-    1.28      15.8 +/-    1.28  0.040 / 0.030
G13     39.8           14.3               10.5 +/-    2.44      26.6 +/-    2.44  0.040 / 0.030
G15     56.3           47.7                9.5 +/-    0.66      12.3 +/-    0.66  0.110 / 0.230
G20     307.3          62.3               10.5 +/-    0.69      11.7 +/-    0.69  0.150 / 0.290
G21     22.1           74.8               10.1 +/-    0.76      10.4 +/-    0.76  0.040 / 0.050
G24     112.7          17.3               12.7 +/-    1.69      29.9 +/-    1.69  0.040 / 0.040
G27     317.2          21.0                9.8 +/-    2.70      21.0 +/-    2.70  0.100 / 0.160
G29     167.9          25.9               10.5 +/-    2.04      20.2 +/-    2.04  0.120 / 0.180
G32     204.9          13.6               11.9 +/-    2.57      30.5 +/-    2.57  0.060 / 0.060