PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/10-13:28:00
G02     202.3          18.8                7.2 +/-    2.34      16.2 +/-    2.34  0.100 / 0.100
G06     167.9          57.5                9.0 +/-    0.91      10.4 +/-    0.91  0.100 / 0.110
G13     225.2          11.5                4.2 +/-    2.41      11.3 +/-    2.41  0.140 / 0.270
G17     26.2           56.9                6.4 +/-    0.39       7.5 +/-    0.39  0.120 / 0.270
G19     315.0          69.8                6.7 +/-    0.51       7.1 +/-    0.51  0.040 / 0.040
G24     306.8          33.2                4.6 +/-    0.84       7.5 +/-    0.84  0.040 / 0.040
G28     90.0           39.1                8.7 +/-    0.73      12.8 +/-    0.73  0.090 / 0.400
G30     157.9          13.8                7.7 +/-    1.45      19.8 +/-    1.45  0.100 / 0.310