PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/10-14:27:30
G02     253.8          78.7                7.1 +/-    0.61       7.3 +/-    0.61  0.030 / 0.040
G05     172.8          17.4               10.5 +/-    2.38      24.6 +/-    2.38  0.030 / 0.040
G06     39.8           56.6                6.8 +/-    0.42       8.0 +/-    0.42  0.040 / 0.040
G12     321.2          55.1                6.7 +/-    1.00       7.9 +/-    1.00  0.050 / 0.050
G17     75.6           18.0                6.5 +/-    0.77      15.1 +/-    0.77  0.060 / 0.150
G19     62.6           34.7                6.4 +/-    1.06      10.3 +/-    1.06  0.050 / 0.170
G24     243.1          32.9                9.0 +/-    1.16      14.8 +/-    1.16  0.030 / 0.040
G25     317.4          17.7                7.7 +/-    2.77      17.9 +/-    2.77  0.040 / 0.030