PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/17-05:58:00
G01     259.0          38.5                5.8 +/-    1.16       8.7 +/-    1.16  0.060 / 0.090
G03     316.4          34.9                2.2 +/-    1.30       3.6 +/-    1.30  0.070 / 0.090
G10     134.3          10.9                3.0 +/-    2.20       8.2 +/-    2.20  0.130 / 0.230
G11     240.4          16.7                5.7 +/-    2.11      13.6 +/-    2.11  0.200 / 0.320
G14     54.6           43.5                2.8 +/-    0.80       3.9 +/-    0.80  0.030 / 0.050
G22     311.1          60.1                4.3 +/-    1.51       4.9 +/-    1.51  0.040 / 0.050
G25     41.7           10.9                2.1 +/-    1.13       5.8 +/-    1.13  0.150 / 0.360
G26     144.0          31.3                5.7 +/-    0.50       9.8 +/-    0.50  0.110 / 0.330
G31     43.6           66.5                3.1 +/-    0.39       3.3 +/-    0.39  0.040 / 0.090
G32     70.8           28.4                2.6 +/-    0.58       4.7 +/-    0.58  0.040 / 0.090