PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/29-20:12:50
G05     52.0           12.5               14.1 +/-    1.26      37.1 +/-    1.26  0.090 / 0.270
G10     242.8          18.7               17.5 +/-    2.14      39.8 +/-    2.14  0.120 / 0.250
G13     65.3           35.7               17.5 +/-    0.80      27.4 +/-    0.80  0.070 / 0.070
G15     106.8          56.7               18.0 +/-    0.61      21.0 +/-    0.61  0.080 / 0.080
G18     256.1          49.7               16.8 +/-    1.29      21.3 +/-    1.29  0.050 / 0.130
G20     35.6           57.3               15.9 +/-    0.42      18.5 +/-    0.42  0.060 / 0.130
G21     324.2          54.8               16.1 +/-    1.15      19.2 +/-    1.15  0.040 / 0.050
G26     281.8          18.0               11.9 +/-    1.48      27.6 +/-    1.48  0.040 / 0.060
G29     159.0          56.2               21.0 +/-    0.81      24.7 +/-    0.81  0.080 / 0.150