PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/08-22:28:10
G02     219.5          64.4               12.1 +/-    1.23      13.2 +/-    1.23  0.080 / 0.280
G06     52.2           73.6               10.8 +/-    0.56      11.2 +/-    0.56  0.100 / 0.250
G12     318.5          36.7                7.8 +/-    0.79      12.0 +/-    0.79  0.040 / 0.040
G17     60.1           29.9                8.8 +/-    0.88      15.4 +/-    0.88  0.030 / 0.040
G19     43.5           46.4                9.5 +/-    0.89      12.5 +/-    0.89  0.080 / 0.080
G24     259.4          40.6               11.1 +/-    0.84      16.1 +/-    0.84  0.080 / 0.070
G28     123.6          15.1               12.7 +/-    1.51      31.5 +/-    1.51  0.040 / 0.090