PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/26-18:42:50
G02     212.8          50.8               13.0 +/-    1.01      16.3 +/-    1.01  0.040 / 0.090
G06     74.8           77.7               11.5 +/-    1.09      11.8 +/-    1.09  0.080 / 0.090
G12     317.5          32.9               10.1 +/-    2.21      16.6 +/-    2.21  0.040 / 0.090
G17     55.3           33.2                8.9 +/-    0.41      14.6 +/-    0.41  0.040 / 0.090
G19     36.4           50.8                9.3 +/-    0.49      11.6 +/-    0.49  0.060 / 0.080
G24     274.8          42.0                9.0 +/-    1.38      12.7 +/-    1.38  0.070 / 0.090
G28     119.6          17.0               10.8 +/-    2.17      25.6 +/-    2.17  0.070 / 0.070