PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/19-19:42:50
G08     307.0          20.0               10.3 +/-    1.37      22.7 +/-    1.37  0.060 / 0.080
G10     344.6          61.6               11.3 +/-    0.64      12.7 +/-    0.64  0.080 / 0.090
G14     220.1          31.2               13.7 +/-    1.93      23.5 +/-    1.93  0.110 / 0.170
G20     48.6           57.2               12.8 +/-    0.73      14.9 +/-    0.73  0.110 / 0.190
G21     138.4          53.4               14.9 +/-    0.33      18.0 +/-    0.33  0.040 / 0.060
G24     70.6           30.3               12.2 +/-    1.11      21.2 +/-    1.11  0.040 / 0.050
G27     269.4          37.0               12.9 +/-    1.90      19.8 +/-    1.90  0.070 / 0.090
G32     226.6          57.7               15.2 +/-    2.23      17.6 +/-    2.23  0.080 / 0.080