PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/16-15:57:50
G01     308.5          32.1                7.1 +/-    2.36      12.0 +/-    2.36  0.100 / 0.180
G10     104.3          41.5                9.2 +/-    0.71      13.1 +/-    0.71  0.160 / 0.170
G11     286.5          27.0                4.6 +/-    0.75       8.6 +/-    0.75  0.080 / 0.170
G14     349.2          67.9                6.0 +/-    0.81       6.5 +/-    0.81  0.150 / 0.170
G22     309.4          25.9                6.9 +/-    2.22      13.2 +/-    2.22  0.030 / 0.040
G25     84.4           16.3                8.9 +/-    2.20      21.5 +/-    2.20  0.040 / 0.040
G31     166.9          63.9                9.6 +/-    0.43      10.6 +/-    0.43  0.040 / 0.050
G32     35.2           53.0                8.0 +/-    1.45       9.7 +/-    1.45  0.040 / 0.040