PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/30-00:13:00
G05     49.1           15.5                8.2 +/-    2.63      20.0 +/-    2.63  0.040 / 0.070
G10     236.5          14.5               14.8 +/-    3.79      37.3 +/-    3.79  0.040 / 0.080
G13     73.6           35.3               11.3 +/-    0.95      17.8 +/-    0.95  0.220 / 0.410
G15     121.4          53.1               13.1 +/-    0.43      15.9 +/-    0.43  0.250 / 0.540
G16     314.4          12.0                9.3 +/-    2.66      24.7 +/-    2.66  0.190 / 0.310
G20     249.1          37.5               13.2 +/-    1.26      20.1 +/-    1.26  0.140 / 0.230
G21     314.2          47.2                9.4 +/-    1.03      12.3 +/-    1.03  0.140 / 0.390
G25     199.3          10.9               14.0 +/-    3.02      38.3 +/-    3.02  0.140 / 0.370
G26     287.4          19.9               10.8 +/-    2.66      23.8 +/-    2.66  0.070 / 0.140
G29     152.8          70.0               12.2 +/-    0.74      12.9 +/-    0.74  0.070 / 0.120