PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/30-20:58:00
G01     125.0          13.4               14.4 +/-    3.40      37.1 +/-    3.40  0.040 / 0.080
G07     59.4           69.3               14.3 +/-    0.38      15.2 +/-    0.38  0.040 / 0.060
G08     50.8           41.5               11.5 +/-    0.64      16.3 +/-    0.64  0.230 / 0.300
G09     178.6          34.1               14.8 +/-    1.34      23.9 +/-    1.34  0.200 / 0.280
G11     118.2          36.3               14.1 +/-    0.68      21.9 +/-    0.68  0.030 / 0.040
G13     320.6          13.3               10.1 +/-    2.78      26.1 +/-    2.78  0.030 / 0.030
G17     201.5          14.3               15.7 +/-    3.19      39.7 +/-    3.19  0.030 / 0.030
G18     101.9          17.8               11.9 +/-    1.40      27.6 +/-    1.40  0.030 / 0.030
G28     281.2          54.6               13.2 +/-    3.30      15.8 +/-    3.30  0.090 / 0.080
G30     340.6          64.7               13.9 +/-    0.26      15.2 +/-    0.26  0.110 / 0.080