PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/29-18:27:50
G10     246.9          25.3               13.8 +/-    1.33      26.7 +/-    1.33  0.040 / 0.050
G13     57.1           30.9               12.4 +/-    1.86      21.4 +/-    1.86  0.030 / 0.050
G15     94.8           57.8               12.8 +/-    0.71      14.8 +/-    0.71  0.220 / 0.580
G16     299.5          15.9                7.6 +/-    2.22      18.4 +/-    2.22  0.160 / 0.510
G20     265.5          49.2               11.5 +/-    4.36      14.6 +/-    4.36  0.060 / 0.120
G21     328.4          56.4               12.4 +/-    0.73      14.6 +/-    0.73  0.050 / 0.140
G26     272.3          17.0                9.7 +/-    2.25      23.0 +/-    2.25  0.030 / 0.030
G29     162.2          56.0               13.4 +/-    0.46      15.8 +/-    0.46  0.030 / 0.040