PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/28-01:58:00
G01     320.1          14.7               -9.1 +/-   32.66     -22.9 +/-   32.66  0.230 / 0.300
G08     258.9          15.1                6.7 +/-    2.87      16.6 +/-    2.87  0.220 / 0.310
G10     73.8           55.0                7.2 +/-    0.38       8.6 +/-    0.38  0.180 / 0.300
G11     305.5          22.0                7.3 +/-    1.63      15.3 +/-    1.63  0.160 / 0.260
G14     283.5          69.1                5.6 +/-    0.75       6.0 +/-    0.75  0.090 / 0.260
G18     307.7          37.8                5.5 +/-    2.03       8.4 +/-    2.03  0.150 / 0.240
G20     66.2           67.0               25.7 +/-    0.84      27.7 +/-    0.84  0.030 / 0.050
G27     226.9          11.3                7.8 +/-    2.31      21.1 +/-    2.31  0.030 / 0.050
G31     175.0          39.7                7.9 +/-    1.42      11.6 +/-    1.42  0.170 / 0.290
G32     4.4            69.1                6.6 +/-    0.26       7.0 +/-    0.26  0.160 / 0.330