PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/06-21:12:50
G02     200.7          25.0               20.6 +/-    1.61      40.2 +/-    1.61  0.040 / 0.090
G06     171.2          56.5               18.3 +/-    1.36      21.5 +/-    1.36  0.040 / 0.090
G13     223.4          10.6               20.7 +/-    1.72      56.9 +/-    1.72  0.080 / 0.220
G17     26.5           56.5               14.9 +/-    0.59      17.5 +/-    0.59  0.090 / 0.180
G19     336.9          70.1               15.8 +/-    0.61      16.7 +/-    0.61  0.080 / 0.110
G24     306.3          33.0               13.5 +/-    1.38      22.3 +/-    1.38  0.070 / 0.110
G28     89.2           41.2               16.6 +/-    0.43      23.7 +/-    0.43  0.040 / 0.050