PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/29-15:12:30
G02     209.6          45.4               10.5 +/-    1.28      14.1 +/-    1.28  0.060 / 0.080
G06     98.6           78.4                9.6 +/-    0.67       9.8 +/-    0.67  0.070 / 0.080
G12     315.9          31.1                8.1 +/-    1.27      13.9 +/-    1.27  0.080 / 0.100
G17     49.4           37.9                7.4 +/-    0.66      11.2 +/-    0.66  0.060 / 0.110
G19     18.5           59.1                8.6 +/-    0.45       9.8 +/-    0.45  0.030 / 0.020
G24     278.5          43.1                7.7 +/-    0.93      10.7 +/-    0.93  0.030 / 0.030
G28     114.2          22.1                9.3 +/-    0.90      19.4 +/-    0.90  0.040 / 0.040