PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/14-17:58:00
G10     259.7          35.2               11.5 +/-    0.81      18.3 +/-    0.81  0.170 / 0.260
G13     45.5           22.5                8.1 +/-    2.62      16.8 +/-    2.62  0.100 / 0.280
G15     67.4           52.8                8.9 +/-    0.68      10.9 +/-    0.68  0.040 / 0.050
G20     287.0          58.0                8.9 +/-    1.62      10.3 +/-    1.62  0.040 / 0.050
G21     347.5          66.4               10.4 +/-    0.61      11.2 +/-    0.61  0.140 / 0.230
G24     128.3          9.7               -15.0 +/-   23.89     -42.3 +/-   23.89  0.110 / 0.240
G26     259.4          11.3                8.6 +/-    3.27      23.3 +/-    3.27  0.180 / 0.300
G27     321.5          12.7                8.0 +/-    4.07      21.1 +/-    4.07  0.040 / 0.040
G29     166.2          40.3                9.9 +/-    1.41      14.4 +/-    1.41  0.040 / 0.060