Illustration of telemetry losses in the soft (0.2–1.5 keV) pn light curve taken on day 2021d55.6. Top: First and last 600s time segments of the light curve showing regular gaps between time intervals taking data. During the last 600s segment, with a lower count rate, the duration of continuous good times are slightly longer, illustrating the dependence of losses with count rate. Second panel: time evolution of durations of continuous good time intervals (black) and gaps without data (red) in comparison to the (re-scaled) count rates (grey). The durations of continuous data-taking were longer while the source was fainter. Third panel: Histogram distributions of durations of goodtimes (black), gaps (red), and times between starting good-time intervals (blue). The durations of gaps vary within very small margins, independent of count rate, between 13 – 15 s while the durations of good times vary between ~10 – 20 s (dependent on count rate, see panel above). The distribution of times between start times of data-taking intervals cluster at 24s and 28s, and these peaks introduce an alias to period studies as seen in the bottom panel where the periodogram contains peaks at these periods.