XMM-Newton Science Analysis System


bkgfit (ebkgmap-2.10.2) [xmmsas_20230412_1735-21.0.0]

Output Files

The output dataset contains a 32-bit-real-valued image which is that linear combination $\sum_{i}^{N} a_i b_i$ of the input model components $b_i$ which most closely approximates the expectation value $<I>$ of the (masked) image $I$. The best-fit amplitudes $\mathbf{a}_{\rm {opt}}$ and the names of the component datasets are stored in the image array header in a table named COMPDATA which has columns as follows:

• WEIGHT: stores the values of $\mathbf{a}_{\rm {opt}}$.
• FILENAME: stores the corresponding element of fitsets.