PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/24-15:58:10
G02     203.6          31.5               19.2 +/-    1.77      32.6 +/-    1.77  0.050 / 0.080
G03     60.0           9.8                 9.6 +/-    2.10      26.8 +/-    2.10  0.050 / 0.080
G06     161.3          68.2               15.7 +/-    0.64      16.7 +/-    0.64  0.120 / 0.230
G12     307.6          15.1                8.6 +/-    1.92      21.4 +/-    1.92  0.070 / 0.210
G17     38.0           47.5               12.0 +/-    1.60      15.6 +/-    1.60  0.130 / 0.250
G19     5.2            64.7               13.1 +/-    0.94      14.4 +/-    0.94  0.130 / 0.280
G24     300.6          36.6               11.9 +/-    2.13      18.4 +/-    2.13  0.040 / 0.020
G28     102.3          31.3               12.2 +/-    1.07      20.8 +/-    1.07  0.040 / 0.020