PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/10-20:42:40
G02     199.8          18.9               16.0 +/-    2.03      36.1 +/-    2.03  0.140 / 0.350
G06     173.3          49.8               13.2 +/-    1.91      16.6 +/-    1.91  0.130 / 0.410
G13     227.8          14.8               15.6 +/-    2.87      39.2 +/-    2.87  0.040 / 0.040
G17     19.4           61.5               12.2 +/-    0.51      13.6 +/-    0.51  0.050 / 0.040
G19     316.7          71.6               12.5 +/-    0.86      13.1 +/-    0.86  0.050 / 0.080
G24     310.8          28.6               11.0 +/-    1.35      19.8 +/-    1.35  0.050 / 0.080
G28     81.7           44.7               12.6 +/-    1.52      17.0 +/-    1.52  0.080 / 0.140
G30     156.1          14.5               14.7 +/-    3.02      36.9 +/-    3.02  0.080 / 0.150