PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/25-06:27:50
G08     315.0          15.4                3.2 +/-    2.23       7.9 +/-    2.23  0.130 / 0.230
G10     323.4          58.5                5.0 +/-    0.35       5.8 +/-    0.35  0.190 / 0.280
G14     216.4          22.3                6.1 +/-    1.50      12.6 +/-    1.50  0.040 / 0.040
G15     46.2           14.6                2.6 +/-    1.68       6.6 +/-    1.68  0.040 / 0.040
G20     53.8           51.5                5.3 +/-    0.99       6.5 +/-    0.99  0.060 / 0.060
G21     129.2          61.8                6.8 +/-    0.35       7.6 +/-    0.35  0.080 / 0.070
G24     78.8           29.9                7.7 +/-    0.98      13.4 +/-    0.98  0.140 / 0.330
G27     280.3          37.8                6.4 +/-    2.02       9.7 +/-    2.02  0.120 / 0.240
G32     219.6          49.8                8.6 +/-    1.69      10.8 +/-    1.69  0.080 / 0.100