PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/06-18:43:10
G05     56.6           61.3                8.7 +/-    0.55       9.8 +/-    0.55  0.090 / 0.290
G12     181.7          27.3               10.8 +/-    2.03      20.0 +/-    2.03  0.100 / 0.270
G13     125.9          16.8               11.8 +/-    1.26      28.1 +/-    1.26  0.020 / 0.040
G15     166.7          11.5                8.8 +/-   18.25      23.8 +/-   18.25  0.030 / 0.040
G21     273.3          18.5                9.1 +/-    2.23      20.8 +/-    2.23  0.080 / 0.250
G25     230.4          49.8                9.6 +/-    0.93      12.1 +/-    0.93  0.080 / 0.260
G29     329.3          56.0                7.7 +/-    0.73       9.1 +/-    0.73  0.050 / 0.130