PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/29-17:28:10
G05     46.1           26.3               10.7 +/-    2.17      20.4 +/-    2.17  0.050 / 0.120
G13     89.0           36.6               12.4 +/-    0.61      19.1 +/-    0.61  0.050 / 0.110
G15     134.6          46.0               14.5 +/-    0.87      19.2 +/-    0.87  0.030 / 0.040
G18     238.1          36.1               12.9 +/-    2.36      20.0 +/-    2.36  0.040 / 0.040
G20     14.6           75.9               12.1 +/-    0.53      12.4 +/-    0.53  0.090 / 0.180
G21     307.0          43.9               11.5 +/-    1.06      15.7 +/-    1.06  0.090 / 0.180
G25     202.8          16.9               14.0 +/-    2.80      33.2 +/-    2.80  0.040 / 0.090
G26     300.8          18.2               11.8 +/-    1.68      27.1 +/-    1.68  0.040 / 0.080
G29     141.3          75.2               14.6 +/-    0.93      15.1 +/-    0.93  0.050 / 0.130