XMM-Newton Science Analysis System
evigweight (evigweight-1.6) [xmmsas_20050815_1803-6.5.0]
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evigweight
computes a weight for each photon j falling
at detector coordinates
and of energy (PI)
by the inverse of the ratio of the effective area at that position
to the central effective area (at the same energy):
 |
(2) |
This weight is stored by default as column WEIGHT
(the name can be changed setting weightcolname).
XMM-Newton SOC/SSC -- 2005-08-16