PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/27-20:28:10
G10     307.2          55.4               19.1 +/-    0.86      22.7 +/-    0.86  0.060 / 0.090
G14     211.6          13.6               28.7 +/-    4.45      73.9 +/-    4.45  0.070 / 0.080
G15     45.6           23.3               14.3 +/-    0.73      29.2 +/-    0.73  0.040 / 0.050
G20     7.9            64.4               17.8 +/-    0.48      19.5 +/-    0.48  0.040 / 0.040
G21     109.1          71.4               19.3 +/-    0.98      20.2 +/-    0.98  0.090 / 0.600
G24     93.9           28.5               18.2 +/-    1.07      33.0 +/-    1.07  0.110 / 0.620
G27     295.3          36.3               20.9 +/-    1.45      32.3 +/-    1.45  0.070 / 0.150
G32     212.2          37.5               25.0 +/-    1.64      37.9 +/-    1.64  0.070 / 0.120