PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/29-19:57:50
G10     291.4          50.6               12.0 +/-    3.16      15.0 +/-    3.16  0.040 / 0.040
G15     47.1           32.3               10.4 +/-    1.40      17.3 +/-    1.40  0.040 / 0.040
G20     343.4          65.4               12.3 +/-    0.82      13.4 +/-    0.82  0.060 / 0.080
G21     73.3           76.8               15.1 +/-    0.36      15.4 +/-    0.36  0.090 / 0.140
G24     105.0          24.4               14.0 +/-    1.10      27.8 +/-    1.10  0.080 / 0.100
G27     306.2          31.7               11.9 +/-    0.86      20.1 +/-    0.86  0.070 / 0.110
G29     168.2          13.1               16.2 +/-    1.75      42.2 +/-    1.75  0.090 / 0.170
G32     208.0          27.4               16.4 +/-    1.26      30.4 +/-    1.26  0.080 / 0.150