Free Access
Table 7.
Individual MASK_FLAGS values.
| Value | Name | Description |
|---|---|---|
| 0 | Not mask | Not inside a mask |
| 1 | Window | Object is outside the window frame |
| 2 | Bright star | Object is bright star or near one |
| 4 | Artefact | Object masked due to nearby artefact |
Notes. The final value of the MASK_FLAGS parameter of a given object will be the sum of all the individual MASK_FLAGS flags that apply to that object.
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.