PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/07-19:28:00
G02     327.9          79.8                8.1 +/-    0.68       8.2 +/-    0.68  0.110 / 0.170
G05     165.0          31.4               13.1 +/-    1.66      22.3 +/-    1.66  0.160 / 0.160
G06     40.6           42.3                8.8 +/-    0.90      12.3 +/-    0.90  0.030 / 0.040
G12     315.3          67.0                9.5 +/-    0.66      10.2 +/-    0.66  0.040 / 0.030
G17     82.8           14.6                9.7 +/-    2.57      24.3 +/-    2.57  0.160 / 0.330
G19     73.2           27.3                9.8 +/-    1.73      18.1 +/-    1.73  0.240 / 0.250
G24     230.4          24.2               11.3 +/-    1.84      22.4 +/-    1.84  0.030 / 0.030
G25     317.3          26.0               10.4 +/-    2.16      20.0 +/-    2.16  0.030 / 0.040