PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/29-13:12:40
G01     77.6           33.1                6.1 +/-    1.06      10.1 +/-    1.06  0.120 / 0.190
G07     133.7          33.6                7.2 +/-    1.43      11.8 +/-    1.43  0.090 / 0.300
G11     57.2           32.2                5.0 +/-    0.74       8.4 +/-    0.74  0.030 / 0.040
G13     284.5          36.8                6.7 +/-    1.17      10.4 +/-    1.17  0.030 / 0.040
G15     309.4          12.9                4.3 +/-    1.22      11.3 +/-    1.22  0.060 / 0.080
G17     225.0          66.4                8.1 +/-    1.37       8.8 +/-    1.37  0.070 / 0.090
G19     220.1          38.5                9.5 +/-    1.65      14.2 +/-    1.65  0.030 / 0.050
G28     9.4            60.3                5.6 +/-    0.77       6.4 +/-    0.77  0.030 / 0.040
G30     126.1          69.3                5.5 +/-    0.30       5.8 +/-    0.30  0.070 / 0.080