PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/06-06:12:40
G01     219.9          10.8                6.3 +/-    2.16      17.4 +/-    2.16  0.180 / 0.350
G03     266.4          68.8                5.3 +/-    0.67       5.6 +/-    0.67  0.190 / 0.390
G09     300.5          16.1                4.4 +/-    2.76      10.6 +/-    2.76  0.030 / 0.040
G14     95.1           17.1                4.3 +/-    1.13      10.1 +/-    1.13  0.030 / 0.050
G16     141.5          52.8                9.7 +/-    0.74      11.8 +/-    0.74  0.180 / 0.390
G22     201.4          63.0                7.3 +/-    1.25       8.1 +/-    1.25  0.120 / 0.270
G23     312.9          42.3                4.8 +/-    1.73       6.7 +/-    1.73  0.120 / 0.410
G26     85.1           55.7                6.0 +/-    0.45       7.1 +/-    0.45  0.110 / 0.460
G31     48.3           26.5                3.0 +/-    1.60       5.7 +/-    1.60  0.080 / 0.110