PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/02-10:58:20
G01     74.9           33.1                6.1 +/-    1.28      10.1 +/-    1.28  0.040 / 0.050
G07     135.2          32.3                8.8 +/-    0.59      14.7 +/-    0.59  0.040 / 0.060
G11     55.8           31.4                4.7 +/-    1.34       8.0 +/-    1.34  0.110 / 0.290
G13     281.4          36.9                7.6 +/-    0.96      11.6 +/-    0.96  0.090 / 0.280
G15     306.5          14.2                2.6 +/-    1.57       6.6 +/-    1.57  0.040 / 0.110
G17     228.4          68.4                6.6 +/-    0.70       7.1 +/-    0.70  0.050 / 0.100
G19     221.7          40.6                7.5 +/-    1.25      10.8 +/-    1.25  0.040 / 0.050
G28     14.1           59.8                4.7 +/-    0.52       5.3 +/-    0.52  0.040 / 0.040
G30     130.1          66.3                7.1 +/-    0.50       7.7 +/-    0.50  0.050 / 0.110