PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/01-03:27:50
G01     308.6          32.0                6.2 +/-    1.70      10.4 +/-    1.70  0.100 / 0.160
G10     103.5          42.5                9.6 +/-    0.48      13.4 +/-    0.48  0.090 / 0.180
G11     282.2          29.5                8.3 +/-    1.63      14.6 +/-    1.63  0.080 / 0.200
G14     356.6          67.2                7.9 +/-    0.81       8.5 +/-    0.81  0.080 / 0.200
G18     115.6          16.6                7.6 +/-    2.16      18.1 +/-    2.16  0.040 / 0.060
G22     308.7          24.1                6.4 +/-    2.24      12.8 +/-    2.24  0.040 / 0.060
G25     80.5           15.5                5.7 +/-    1.10      14.1 +/-    1.10  0.080 / 0.390
G31     170.9          61.6               12.4 +/-    0.91      13.9 +/-    0.91  0.110 / 0.340
G32     31.2           55.6                5.1 +/-    0.74       6.0 +/-    0.74  0.040 / 0.040