PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/31-19:58:00
G01     123.6          13.9               13.7 +/-    1.65      35.1 +/-    1.65  0.030 / 0.040
G07     76.0           65.0               12.4 +/-    0.42      13.6 +/-    0.42  0.020 / 0.030
G08     47.3           35.2               10.2 +/-    1.16      16.0 +/-    1.16  0.080 / 0.090
G09     178.2          33.1               13.3 +/-    0.58      21.9 +/-    0.58  0.130 / 0.090
G11     112.2          38.0               14.1 +/-    1.38      21.2 +/-    1.38  0.070 / 0.100
G13     319.7          15.5                9.9 +/-    2.89      24.2 +/-    2.89  0.080 / 0.110
G17     199.6          19.7               14.9 +/-    1.85      33.1 +/-    1.85  0.130 / 0.270
G18     97.3           18.3               12.4 +/-    1.35      28.4 +/-    1.35  0.120 / 0.270
G28     277.3          51.8               13.6 +/-    2.64      16.8 +/-    2.64  0.040 / 0.030
G30     339.0          64.6               11.7 +/-    1.09      12.9 +/-    1.09  0.040 / 0.030