PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/26-00:28:00
G10     259.1          33.2                9.2 +/-    1.53      15.1 +/-    1.53  0.110 / 0.240
G13     46.2           23.9                8.3 +/-    1.88      16.6 +/-    1.88  0.110 / 0.250
G15     72.4           55.9                8.8 +/-    0.79      10.3 +/-    0.79  0.040 / 0.040
G16     284.9          14.5                7.5 +/-    1.64      18.8 +/-    1.64  0.040 / 0.040
G20     267.9          38.6                7.5 +/-    2.49      11.2 +/-    2.49  0.230 / 0.270
G21     345.2          66.1                9.6 +/-    0.38      10.4 +/-    0.38  0.230 / 0.480
G24     125.4          9.8               -10.6 +/-   32.89     -29.7 +/-   32.89  0.120 / 0.230
G26     257.8          11.5               10.0 +/-    6.34      27.0 +/-    6.34  0.100 / 0.260
G27     321.5          12.5                5.3 +/-    5.80      14.1 +/-    5.80  0.060 / 0.310
G29     167.3          40.6               10.4 +/-    1.44      15.0 +/-    1.44  0.060 / 0.210