PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/04-21:12:30
G02     12.7           69.4                9.4 +/-    0.44       9.9 +/-    0.44  0.030 / 0.020
G05     156.7          46.9               13.0 +/-    0.50      17.1 +/-    0.50  0.030 / 0.020
G06     46.4           27.3                6.9 +/-    2.16      12.9 +/-    2.16  0.070 / 0.130
G12     242.8          80.7               10.1 +/-    0.67      10.2 +/-    0.67  0.080 / 0.160
G19     85.5           21.7                9.5 +/-    1.93      20.1 +/-    1.93  0.110 / 0.420
G24     218.1          13.4               13.5 +/-    1.50      34.8 +/-    1.50  0.120 / 0.410
G25     312.8          40.8                9.3 +/-    0.81      13.4 +/-    0.81  0.150 / 0.270
G29     295.2          15.7                9.9 +/-    1.96      24.2 +/-    1.96  0.210 / 0.210