search

NuSTAR / nustar-clock-utils

Utilities for a precise timing calibration of NuSTAR data
3 stars 3 forks source link

Early November #97

Closed bwgref closed 1 year ago

bwgref commented 1 year ago

Bad data points (and some ratty measurements when close to the Sun)

bwgref commented 1 year ago

Early November update.

Before:

Screen Shot 2023-11-07 at 1 34 40 PM

After:

Screen Shot 2023-11-07 at 1 57 38 PM

Note that we added a lot of the measurements when we observing near the Sun. These seem to be out of family with the trends. Not sure if that's a real effect caused by the oscillator getting warm, bad samples in this configuration, or just bad luck. It looks like we have "more samples >1-ms from the trend" during this period of time. When adding all of those to the black list it seemed to improve the solution.

matteobachetti commented 1 year ago

It would be good to pick all measurements done near the Sun to see if there is a significant trend there. It might actually help finding non-linearities in the temperature/frequency solution