PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/22-15:58:10
G02     68.8           26.3                9.1 +/-    1.65      17.2 +/-    1.65  0.080 / 0.080
G05     48.0           53.6                9.0 +/-    0.37      10.8 +/-    0.37  0.090 / 0.080
G12     181.2          18.8               12.1 +/-    0.75      27.3 +/-    0.75  0.100 / 0.190
G13     117.0          23.5               12.8 +/-    1.64      26.0 +/-    1.64  0.120 / 0.200
G15     159.8          21.0               11.2 +/-    1.65      24.0 +/-    1.65  0.130 / 0.240
G21     282.4          25.8               10.8 +/-    1.82      20.8 +/-    1.82  0.120 / 0.260
G25     217.2          40.3               12.6 +/-    1.44      18.2 +/-    1.44  0.030 / 0.040
G29     337.5          67.2                8.2 +/-    1.04       8.8 +/-    1.04  0.030 / 0.040