PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/25-22:57:50
G10     277.1          43.7               20.3 +/-    0.92      27.8 +/-    0.92  0.090 / 0.130
G13     38.6           11.2               16.2 +/-    3.59      44.0 +/-    3.59  0.080 / 0.100
G15     53.5           45.3               16.0 +/-    1.05      21.5 +/-    1.05  0.050 / 0.050
G20     274.9          33.1               12.5 +/-    0.88      20.5 +/-    0.88  0.050 / 0.040
G21     25.8           76.2               19.2 +/-    0.67      19.7 +/-    0.67  0.170 / 0.610
G24     110.9          19.3               21.1 +/-    1.27      47.2 +/-    1.27  0.220 / 0.660
G27     314.0          25.1               16.8 +/-    1.44      32.8 +/-    1.44  0.150 / 0.160
G29     169.0          23.3               22.0 +/-    3.46      44.7 +/-    3.46  0.090 / 0.210
G32     205.3          18.9               28.7 +/-    2.22      64.8 +/-    2.22  0.030 / 0.050