PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/19-01:12:40
G01     82.7           33.0                8.0 +/-    0.50      13.2 +/-    0.50  0.040 / 0.050
G07     130.8          40.2                9.5 +/-    0.82      13.8 +/-    0.82  0.050 / 0.060
G11     64.5           38.7                5.6 +/-    0.59       8.3 +/-    0.59  0.030 / 0.040
G13     287.9          37.0                8.2 +/-    1.08      12.5 +/-    1.08  0.020 / 0.040
G15     310.2          13.1                6.5 +/-    0.91      16.9 +/-    0.91  0.050 / 0.100
G17     220.3          58.1               10.1 +/-    0.86      11.7 +/-    0.86  0.060 / 0.110
G19     217.8          33.2                9.9 +/-    2.31      16.3 +/-    2.31  0.040 / 0.090
G28     2.7            61.0                6.8 +/-    0.50       7.6 +/-    0.50  0.050 / 0.100
G30     122.9          66.4                7.8 +/-    0.40       8.5 +/-    0.40  0.050 / 0.110