Wilkinson Microwave Anisotropy Probe Spacecraft Properties of WMAP at different frequencies

| Property | K_band | Ka_band | Q_band | V_band | W_band |
|---|---|---|---|---|---|
| Central wavelength (mm) | 13 | 9.1 | 7.3 | 4.9 | 3.2 |
| Central frequency ( GHz ) | 23 | 33 | 41 | 61 | 94 |
| Bandwidth (GHz) | 5.5 | 7.0 | 8.3 | 14.0 | 20.5 |
| Beam size (arcminutes) | 52.8 | 39.6 | 30.6 | 21 | 13.2 |
| Number of radiometers | 2 | 2 | 4 | 4 | 8 |
| System temperature ( K ) | 29 | 39 | 59 | 92 | 145 |