PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/04-05:27:50
G08     267.7          17.9                7.7 +/-    1.78      17.8 +/-    1.78  0.110 / 0.180
G10     61.8           58.2                4.4 +/-    0.41       5.1 +/-    0.41  0.110 / 0.180
G11     311.5          17.2               -0.8 +/-   14.79      -2.0 +/-   14.79  0.040 / 0.060
G14     263.7          63.8                5.7 +/-    0.76       6.2 +/-    0.76  0.040 / 0.060
G18     312.4          31.7                4.8 +/-    3.29       8.0 +/-    3.29  0.030 / 0.030
G20     91.6           43.2                5.0 +/-    0.80       7.0 +/-    0.80  0.030 / 0.040
G21     155.0          15.8                5.0 +/-    1.50      12.3 +/-    1.50  0.110 / 0.230
G27     231.6          15.7                7.4 +/-    2.51      18.0 +/-    2.51  0.100 / 0.280
G31     176.6          32.5                6.2 +/-    1.76      10.3 +/-    1.76  0.130 / 0.300
G32     347.0          73.5                4.3 +/-    0.60       4.5 +/-    0.60  0.110 / 0.230