Table 1.
Discarded and quality-flagged data.
| Frequency | Outlier rings (a) | Discarded rings (b) | Discarded data (c) | Relative | Relative |
|---|---|---|---|---|---|
| [GHz] | [%] | [%] | [%] | total samples (d) | masked samples (e) |
| 30....... | 0.71 | 1.88 | 2.62 | 1.119 | 1.095 |
| 44....... | 0.57 | 1.76 | 2.19 | 1.120 | 1.098 |
| 70....... | 0.71 | 1.89 | 2.84 | 1.114 | 1.091 |
| 100....... | 0.97 | 2.17 | 20.00 | 1.167 | 1.163 |
| 143....... | 1.16 | 2.36 | 21.53 | 1.167 | 1.160 |
| 217....... | 0.95 | 2.16 | 20.98 | 1.221 | 1.209 |
| 353....... | 0.90 | 2.08 | 21.78 | 1.179 | 1.174 |
| 545....... | 0.89 | 2.06 | 15.93 | 1.068 | 1.066 |
| 857....... | 0.93 | 2.11 | 17.76 | 1.019 | 1.015 |
(a)Rings with anomalous glitch rate, noise level, gain, or numerous jumps. A percentage of rings is not necessarily the same as a percentage of integration time, the ring length varies seasonally by almost a factor of 2.
(b)Total fraction of rings discarded because of outlier statistics and spacecraft events such as the sorption-cooler switchover, elevated spin-rate campaign and LFI reboot on day 1085 since launch.
(c)Total fraction of samples flagged because of pointing, jumps, cosmic-ray glitches, outlier pointing periods and spacecraft events.
(d)Ratio of total integration time in the full-frequency maps, in the sense (NPIPE / 2018).
(e)Ratio of total integration time in the full-frequency maps, in the sense (NPIPE / 2018), over the 50% of the sky with the least foregrounds. The distinction matters for LFI, because the ninth survey – included only in NPIPE – lies almost entirely in the Galactic plane.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.