PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/31-14:28:10
G02     203.6          28.8               10.8 +/-    1.25      19.4 +/-    1.25  0.140 / 0.060
G06     157.0          67.9                9.7 +/-    0.33      10.3 +/-    0.33  0.080 / 0.110
G12     307.7          18.0                7.1 +/-    1.90      16.4 +/-    1.90  0.180 / 0.230
G17     35.6           49.4                8.5 +/-    0.97      10.8 +/-    0.97  0.150 / 0.170
G19     344.3          67.8                8.2 +/-    0.63       8.8 +/-    0.63  0.030 / 0.030
G24     299.0          38.2                7.8 +/-    2.32      11.6 +/-    2.32  0.040 / 0.020
G28     99.6           33.1                8.5 +/-    1.33      14.0 +/-    1.33  0.030 / 0.030