PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/04-01:13:00
G10     242.1          18.9               14.5 +/-    2.07      32.7 +/-    2.07  0.120 / 0.770
G13     64.8           34.7               10.1 +/-    0.58      16.2 +/-    0.58  0.110 / 0.650
G15     112.0          56.9               12.4 +/-    0.35      14.4 +/-    0.35  0.110 / 0.260
G16     305.1          15.3                7.4 +/-    3.98      18.3 +/-    3.98  0.190 / 0.210
G20     253.6          36.5               11.8 +/-    2.02      18.2 +/-    2.02  0.060 / 0.060
G21     320.9          52.1               11.9 +/-    1.26      14.6 +/-    1.26  0.050 / 0.070
G26     276.9          19.3               10.1 +/-    1.30      22.6 +/-    1.30  0.040 / 0.040
G29     161.6          63.4               10.8 +/-    0.91      11.9 +/-    0.91  0.020 / 0.050