PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/03-10:57:40
G01     73.1           33.0                4.7 +/-    0.82       7.7 +/-    0.82  0.090 / 0.300
G07     136.1          31.1                7.5 +/-    0.84      12.8 +/-    0.84  0.110 / 0.280
G11     54.7           30.5                3.8 +/-    1.26       6.6 +/-    1.26  0.050 / 0.090
G13     279.5          36.9                6.9 +/-    1.00      10.6 +/-    1.00  0.050 / 0.100
G15     305.3          14.6                3.3 +/-    1.99       8.3 +/-    1.99  0.040 / 0.060
G17     230.9          69.7                6.3 +/-    0.93       6.7 +/-    0.93  0.040 / 0.050
G19     222.8          41.9                7.9 +/-    0.97      11.2 +/-    0.97  0.040 / 0.080
G28     16.7           59.5                4.4 +/-    0.44       5.0 +/-    0.44  0.040 / 0.080
G30     132.1          64.9                5.9 +/-    0.72       6.5 +/-    0.72  0.030 / 0.050