PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/03-16:42:30
G02     55.9           36.7                6.5 +/-    0.73       9.9 +/-    0.73  0.040 / 0.060
G05     66.0           66.6                7.4 +/-    0.88       8.0 +/-    0.88  0.030 / 0.060
G12     183.4          33.3               11.0 +/-    1.69      18.0 +/-    1.69  0.040 / 0.040
G13     129.5          13.7                9.4 +/-    2.52      24.0 +/-    2.52  0.040 / 0.040
G21     269.8          16.2                7.2 +/-    2.20      17.3 +/-    2.20  0.130 / 0.390
G25     235.2          53.0                8.2 +/-    0.66      10.0 +/-    0.66  0.130 / 0.530
G29     326.7          52.0                6.6 +/-    0.85       8.1 +/-    0.85  0.050 / 0.070