PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/28-18:58:10
G07     352.9          63.7               12.0 +/-    0.54      13.2 +/-    0.54  0.050 / 0.040
G08     86.9           51.9               13.2 +/-    2.18      16.3 +/-    2.18  0.050 / 0.030
G09     187.0          68.5               12.3 +/-    1.16      13.1 +/-    1.16  0.090 / 0.160
G11     140.7          17.8               16.9 +/-    1.51      39.3 +/-    1.51  0.130 / 0.150
G23     157.6          36.6               12.9 +/-    0.79      19.8 +/-    0.79  0.030 / 0.030
G27     51.6           30.0               10.7 +/-    1.04      18.7 +/-    1.04  0.030 / 0.030
G28     240.4          30.2               14.7 +/-    1.24      25.6 +/-    1.24  0.090 / 0.090
G30     307.0          39.7               10.7 +/-    0.74      15.6 +/-    0.74  0.100 / 0.100