PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/02-02:28:00
G10     269.2          39.5               13.0 +/-    1.43      19.0 +/-    1.43  0.040 / 0.040
G13     41.0           16.7                7.0 +/-    1.24      16.6 +/-    1.24  0.040 / 0.040
G15     58.2           48.7                8.3 +/-    0.32      10.6 +/-    0.32  0.160 / 0.310
G16     275.9          11.5               11.6 +/-    4.13      31.2 +/-    4.13  0.170 / 0.280
G20     292.3          56.7               10.0 +/-    0.75      11.7 +/-    0.75  0.220 / 0.510
G21     5.4            72.8               10.8 +/-    0.36      11.3 +/-    0.36  0.180 / 0.610
G24     117.7          15.5               10.9 +/-    1.93      26.8 +/-    1.93  0.060 / 0.080
G27     317.7          20.5                8.2 +/-    2.86      17.7 +/-    2.86  0.070 / 0.070
G29     168.6          29.9               11.6 +/-    1.10      20.3 +/-    1.10  0.090 / 0.220
G32     204.2          12.6               16.3 +/-    2.84      43.0 +/-    2.84  0.110 / 0.170