PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/29-21:28:00
G01     86.1           32.2               10.4 +/-    1.21      17.4 +/-    1.21  0.030 / 0.070
G07     128.7          37.4               13.6 +/-    0.27      20.6 +/-    0.27  0.060 / 0.070
G11     63.5           37.8                9.5 +/-    1.02      14.3 +/-    1.02  0.150 / 0.190
G13     290.3          37.6               11.3 +/-    3.50      17.1 +/-    3.50  0.180 / 0.160
G15     312.6          11.7                8.4 +/-    2.68      22.5 +/-    2.68  0.060 / 0.100
G17     215.9          58.1               12.7 +/-    1.16      14.7 +/-    1.16  0.060 / 0.100
G18     58.1           21.8                7.9 +/-    1.72      16.7 +/-    1.72  0.040 / 0.040
G19     215.5          29.9               13.3 +/-    3.35      23.4 +/-    3.35  0.040 / 0.040
G28     346.4          61.7                9.7 +/-    0.62      10.8 +/-    0.62  0.030 / 0.030
G30     114.8          72.9               12.8 +/-    0.59      13.3 +/-    0.59  0.030 / 0.030