PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/02-21:57:20
G10     297.6          52.6               10.5 +/-    1.67      12.8 +/-    1.67  0.040 / 0.030
G15     46.4           29.7                9.1 +/-    1.53      16.0 +/-    1.53  0.060 / 0.040
G20     351.9          65.2               11.5 +/-    0.51      12.5 +/-    0.51  0.050 / 0.100
G21     90.3           75.3               11.8 +/-    0.63      12.1 +/-    0.63  0.050 / 0.070
G24     100.2          26.3               11.9 +/-    1.40      22.6 +/-    1.40  0.080 / 0.160
G27     302.1          33.8               10.4 +/-    1.02      17.0 +/-    1.02  0.070 / 0.160
G32     209.7          31.0               13.6 +/-    1.04      23.3 +/-    1.04  0.060 / 0.100