XMM-Newton SAS Home Page
XMM-Newton Science Analysis System

hkauxplot (hkauxplot-4.8) [xmmsas_20211130_0941-20.0.0]

Future developments

There may be a need for binning the values as a typical observation of 40ks will either produce many pages or too many points per page to be useful if the number of columns requested is more than about 20. For now, the user may select a start and end row, frame or time and plot only subintervals of a file. It's not clear that binning is practical because the algorithm would be complex for GTIs. It may be useful to run a separate task like evselect to bin the data BEFORE running hkauxplot.

pgplot currently creates it's own y-axis scales. This may cause viewing problems for large (multiple orders of magnitude) scales. Thus, it may be necessary to allow for logarithmic plots, but this may prove impractical because adding a parameter for all columns axis scale is cumbersome, and an automated solution (e.g. if more than 2 orders of magnitude) may have unintended results, especially for negative numbers.

While this task supports plotting EPIC and OM housekeeping and auxiliary files, it is not currently requested that they do so. Should this functionality be requested, this task can be expanded to accomodate these files in more than just a general case.

At some point the OAL 'long and short column name converter' may be incorporated. This allows users to use more familiar (and easy to remember and understand) proxy values for the the non-explicit column names (e.g. E1290) in the HK files.

XMM-Newton SOC -- 2021-11-30