PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/13-14:27:30
G02     201.7          22.4               -5.2 +/-    1.26     -10.8 +/-    1.26  0.240 / 0.580
G06     166.9          58.9               10.2 +/-    1.16      11.6 +/-    1.16  0.230 / 0.690
G13     223.0          10.6                8.7 +/-    2.24      24.0 +/-    2.24  0.040 / 0.100
G17     21.3           59.5                8.7 +/-    0.66       9.9 +/-    0.66  0.040 / 0.110
G19     341.0          69.9                8.4 +/-    0.45       8.9 +/-    0.45  0.080 / 0.180
G24     307.2          31.7                7.4 +/-    1.41      12.5 +/-    1.41  0.080 / 0.180
G28     88.0           42.7                8.9 +/-    0.90      12.4 +/-    0.90  0.100 / 0.130
G30     157.5          10.8                9.8 +/-    3.16      26.9 +/-    3.16  0.090 / 0.140