PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/24-23:28:00
G02     338.1          79.6               10.0 +/-    0.78      10.1 +/-    0.78  0.030 / 0.040
G05     164.0          32.6               15.7 +/-    1.02      26.1 +/-    1.02  0.030 / 0.040
G06     41.4           40.9                9.1 +/-    0.78      13.0 +/-    0.78  0.100 / 0.250
G12     313.5          70.4                9.5 +/-    0.48      10.0 +/-    0.48  0.120 / 0.320
G17     83.8           14.7               10.0 +/-    1.72      25.1 +/-    1.72  0.060 / 0.080
G19     72.6           29.7               10.6 +/-    0.64      18.6 +/-    0.64  0.040 / 0.100
G24     229.3          23.8               16.1 +/-    3.18      32.4 +/-    3.18  0.030 / 0.040
G25     317.5          26.7                8.3 +/-    1.02      15.6 +/-    1.02  0.030 / 0.050