PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/06-17:12:30
G02     204.0          30.7               16.4 +/-    1.56      28.4 +/-    1.56  0.040 / 0.060
G06     159.9          68.7               14.9 +/-    1.08      15.8 +/-    1.08  0.040 / 0.060
G12     307.9          15.8                9.5 +/-    2.19      23.1 +/-    2.19  0.140 / 0.390
G17     38.2           47.4               11.4 +/-    0.48      14.9 +/-    0.48  0.170 / 0.350
G19     5.7            64.5               12.0 +/-    0.51      13.1 +/-    0.51  0.050 / 0.090
G24     300.4          36.7               12.5 +/-    0.99      19.2 +/-    0.99  0.050 / 0.090
G28     102.4          31.3               12.4 +/-    0.53      21.1 +/-    0.53  0.040 / 0.030