PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/29-20:43:00
G10     253.6          28.3               16.3 +/-    2.76      29.6 +/-    2.76  0.090 / 0.120
G13     51.5           29.3               16.9 +/-    1.51      30.0 +/-    1.51  0.100 / 0.110
G15     79.4           56.4               16.5 +/-    0.61      19.4 +/-    0.61  0.120 / 0.430
G16     296.1          13.7                9.4 +/-    1.90      24.2 +/-    1.90  0.100 / 0.320
G18     275.1          58.4               13.4 +/-    1.72      15.5 +/-    1.72  0.030 / 0.030
G20     45.2           45.5               15.2 +/-    0.64      20.3 +/-    0.64  0.040 / 0.040
G21     341.1          64.0               16.8 +/-    0.82      18.5 +/-    0.82  0.040 / 0.050
G26     268.7          13.9               12.6 +/-    1.23      32.2 +/-    1.23  0.040 / 0.060
G29     163.6          41.2               19.6 +/-    1.26      27.9 +/-    1.26  0.060 / 0.070