PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/16-10:27:50
G02     204.3          40.6                8.2 +/-    1.28      11.8 +/-    1.28  0.080 / 0.190
G06     162.3          71.8                7.3 +/-    0.95       7.7 +/-    0.95  0.110 / 0.140
G12     310.0          17.9                4.4 +/-    0.91      10.3 +/-    0.91  0.090 / 0.140
G17     42.0           44.3                3.5 +/-    0.46       4.8 +/-    0.46  0.100 / 0.140
G19     14.4           61.3                4.5 +/-    0.49       5.0 +/-    0.49  0.020 / 0.050
G24     294.0          39.3                4.3 +/-    1.01       6.3 +/-    1.01  0.030 / 0.040
G28     107.6          27.3                6.9 +/-    2.37      12.8 +/-    2.37  0.070 / 0.080