PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/26-01:28:00
G10     259.8          32.8               10.9 +/-    1.28      18.1 +/-    1.28  0.070 / 0.100
G13     46.3           24.7                9.3 +/-    1.27      18.2 +/-    1.27  0.070 / 0.080
G15     71.2           55.4               11.3 +/-    0.77      13.4 +/-    0.77  0.150 / 0.250
G16     287.0          13.4                8.4 +/-    0.99      21.7 +/-    0.99  0.150 / 0.290
G18     284.4          60.4               10.9 +/-    0.77      12.3 +/-    0.77  0.040 / 0.050
G20     50.6           38.7                8.0 +/-    0.25      11.8 +/-    0.25  0.040 / 0.040
G21     347.9          67.3                8.8 +/-    0.69       9.5 +/-    0.69  0.040 / 0.090
G26     260.0          11.1               11.3 +/-    1.98      30.9 +/-    1.98  0.040 / 0.090
G27     320.5          14.9                9.2 +/-    2.62      22.9 +/-    2.62  0.160 / 0.460
G29     166.5          36.6               13.5 +/-    1.16      20.9 +/-    1.16  0.160 / 0.320