PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/13-00:43:00
G10     244.3          21.2               14.5 +/-    2.79      31.0 +/-    2.79  0.110 / 0.600
G13     61.3           33.6                9.8 +/-    0.94      16.0 +/-    0.94  0.120 / 0.570
G15     106.5          57.9               12.2 +/-    0.59      14.1 +/-    0.59  0.040 / 0.070
G16     302.0          15.7                4.9 +/-    3.12      11.9 +/-    3.12  0.040 / 0.060
G20     254.6          33.8               13.9 +/-    1.54      22.6 +/-    1.54  0.080 / 0.140
G21     323.9          54.2               10.9 +/-    2.66      13.1 +/-    2.66  0.080 / 0.190
G26     273.8          18.5                9.9 +/-    0.97      22.5 +/-    0.97  0.030 / 0.040
G29     162.8          59.9               13.0 +/-    1.59      14.7 +/-    1.59  0.030 / 0.040