Open Access
Table 1
Primary header of an AOT file.
| Keyword | Type | Description |
|---|---|---|
| AOT-VERS | str | Its presence identifies the file as an AOT file and indicates the version of the format that it complies with, following Semantic Versioning (Preston-Werner 2013). For the current specification, the value must be ‘2.0.0’.(a) |
| AO-MODE | str | Describes the system’s AO configuration. Must be one of ‘SCAO’, ‘SLAO’, ‘GLAO’, ‘MOAO’, ‘LTAO’ or ‘MCAO’ (which respectively stand for Single Conjugate, Single Laser, Ground Layer, Multi-Object, Laser Tomography and Multi-Conjugate Adaptive Optics).(a) |
| TIMESYS | str | Defines the temporal reference frame for the entire file. Value must be ‘UTC’.(a, b) |
| DATE-BEG | str | Start time of data acquisition in ISO derived format (see Appendix C.5).(b) |
| DATE-END | str | Stop time of data acquisition in ISO derived format (see Appendix C.5).(b) |
| SYS-NAME | str | Name of the AO system that produced the data. |
| STREHL-R | flt | Estimated mean Strehl ratio for the duration of the observation (arcsec). |
| STREHL-L | flt | Reference wavelength for the Strehl ratio estimation (m). |
| CONFIG | str | Free-form text that describes configuration parameters of the system. |
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