PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/14-19:58:10
G05     49.1           17.5                7.7 +/-    0.82      18.0 +/-    0.82  0.160 / 0.340
G10     237.4          14.1               12.8 +/-    3.76      32.5 +/-    3.76  0.130 / 0.250
G13     72.9           36.0               11.5 +/-    0.90      18.0 +/-    0.90  0.050 / 0.070
G15     130.7          52.8               13.2 +/-    0.73      16.1 +/-    0.73  0.040 / 0.070
G16     311.8          13.5                8.1 +/-    1.96      20.8 +/-    1.96  0.060 / 0.130
G20     249.9          38.4               14.2 +/-    2.01      21.2 +/-    2.01  0.070 / 0.120
G21     315.1          48.2               10.5 +/-    1.30      13.6 +/-    1.30  0.090 / 0.140
G26     285.0          20.3               10.3 +/-    1.54      22.6 +/-    1.54  0.080 / 0.140
G29     157.1          70.8               13.5 +/-    0.69      14.2 +/-    0.69  0.030 / 0.060