PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/23-01:12:40
G10     248.9          24.3               10.2 +/-    1.60      20.3 +/-    1.60  0.070 / 0.150
G13     56.4           32.2               10.0 +/-    0.55      16.8 +/-    0.55  0.070 / 0.140
G15     95.7           58.8               12.8 +/-    0.65      14.7 +/-    0.65  0.040 / 0.060
G16     298.9          14.7                6.8 +/-    2.00      16.9 +/-    2.00  0.040 / 0.050
G18     264.9          53.3               11.2 +/-    1.16      13.6 +/-    1.16  0.110 / 0.390
G20     42.4           48.8                9.4 +/-    0.50      12.0 +/-    0.50  0.110 / 0.420
G21     330.6          58.8                9.3 +/-    0.33      10.7 +/-    0.33  0.030 / 0.070
G26     271.1          16.2               10.1 +/-    3.21      24.3 +/-    3.21  0.040 / 0.060
G29     163.8          50.2               10.4 +/-    2.75      13.1 +/-    2.75  0.200 / 0.340