PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/01-04:27:50
G10     265.9          37.4               11.8 +/-    1.04      17.9 +/-    1.04  0.140 / 0.370
G13     42.5           19.2                4.9 +/-    1.43      10.9 +/-    1.43  0.160 / 0.480
G15     60.7           50.0                9.1 +/-    0.59      11.5 +/-    0.59  0.040 / 0.040
G16     279.1          12.5               10.2 +/-    2.16      27.1 +/-    2.16  0.040 / 0.040
G20     319.9          67.0                7.5 +/-    0.91       8.0 +/-    0.91  0.110 / 0.170
G21     358.7          70.9               10.0 +/-    0.84      10.5 +/-    0.84  0.130 / 0.170
G24     120.8          13.6                7.8 +/-    1.26      20.1 +/-    1.26  0.200 / 0.430
G27     319.0          18.3                7.3 +/-    1.18      16.6 +/-    1.18  0.150 / 0.360
G29     168.2          32.9               11.3 +/-    1.09      18.6 +/-    1.09  0.080 / 0.250