PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/11-21:57:50
G02     287.0          81.2               11.8 +/-    0.66      12.0 +/-    0.66  0.080 / 0.130
G05     167.4          25.3               16.5 +/-    1.10      32.1 +/-    1.10  0.060 / 0.170
G06     40.3           47.7               11.2 +/-    0.66      14.5 +/-    0.66  0.080 / 0.130
G12     319.9          63.6               10.9 +/-    1.03      12.1 +/-    1.03  0.080 / 0.170
G17     78.1           18.2               10.2 +/-    0.72      23.3 +/-    0.72  0.040 / 0.040
G19     65.2           34.5               11.3 +/-    0.56      18.1 +/-    0.56  0.040 / 0.040
G24     235.2          28.7               14.6 +/-    1.06      26.2 +/-    1.06  0.030 / 0.050
G25     317.7          20.3                9.5 +/-    3.16      20.8 +/-    3.16  0.030 / 0.040