Table 2
Scanning beam solid angle (ΩSB) error budget, showing the bias and fractional error due to the residual time response (ΔΩτ), near sidelobes (ΔΩNSL) and solid angle colour correction (ΔΩCC).
| Band | ΩSB | ΔΩτ | ΔΩNSL | ΔΩCC | ΔΩMC |
| [GHz] | [arcmin2] | ||||
|
|
|||||
| 100 ...... | 104.2 | −0.03 ± 0.04% | 0.11 (0.21)% | <0.3% | 0.53% |
| 143 ...... | 58.4 | −0.03 ± 0.01% | 0.13 (0.17)% | <0.3% | 0.14% |
| 217 ...... | 26.9 | −0.03 ± 0.01% | 0.11 (0.13)% | <0.3% | 0.11% |
| 353 ...... | 25.1 | −0.002 ± 0.01% | 0.18 (0.22)% | <0.5% | 0.10% |
| 545 ...... | 25.4 | 0.04 ± 0.01% | 0.16% | <2.0% | 0.13% |
| 857 ...... | 23.0 | 0.09 ± 0.01% | 0.21% | <1.0% | 0.15% |
Notes. The Monte Carlo error (ΔΩMC) includes noise and pointing uncertainty. The colour correction is the upper limit in solid angle change due to colour correction from a planet spectrum source (roughly ν2) to IRAS-convention (ν-1). The near sidelobe contribution of the nominal (maximal) near sidelobe envelopes is shown for the 100–353 GHz bands; there is no appreciable difference between the two in the sub-mm bands, due to the extremely high signal-to-noise of these data.
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