PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/15-22:12:30
G08     303.8          20.5               10.9 +/-    1.30      23.7 +/-    1.30  0.040 / 0.060
G10     354.6          62.3               10.2 +/-    0.80      11.3 +/-    0.80  0.040 / 0.050
G14     223.1          37.0               14.6 +/-    1.30      22.3 +/-    1.30  0.120 / 0.120
G20     55.2           55.4               11.1 +/-    0.64      13.2 +/-    0.64  0.070 / 0.120
G21     142.3          49.0               15.0 +/-    0.41      19.1 +/-    0.41  0.050 / 0.040
G24     64.9           29.1               10.9 +/-    1.26      19.4 +/-    1.26  0.080 / 0.040
G27     263.5          35.5               15.1 +/-    1.35      23.7 +/-    1.35  0.070 / 0.070
G32     232.5          61.6               14.0 +/-    1.40      15.7 +/-    1.40  0.080 / 0.090