PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/01-04:58:00
G01     258.3          38.2                9.5 +/-    1.18      14.3 +/-    1.18  0.040 / 0.050
G03     316.4          35.5                4.6 +/-    1.16       7.3 +/-    1.16  0.040 / 0.050
G10     134.6          10.4                5.5 +/-    2.79      15.1 +/-    2.79  0.140 / 0.340
G11     240.2          16.3                7.8 +/-    2.21      18.8 +/-    2.21  0.110 / 0.310
G14     55.2           43.2                5.3 +/-    0.59       7.3 +/-    0.59  0.180 / 0.330
G22     310.8          60.2                7.1 +/-    0.90       8.1 +/-    0.90  0.170 / 0.340
G25     41.7           11.1                4.2 +/-    1.47      11.4 +/-    1.47  0.070 / 0.100
G26     144.2          31.6                9.6 +/-    0.49      16.2 +/-    0.49  0.060 / 0.080
G31     43.2           66.6                6.7 +/-    0.33       7.2 +/-    0.33  0.040 / 0.070
G32     71.0           28.5                4.3 +/-    0.56       7.7 +/-    0.56  0.040 / 0.080