Changes between Version 4 and Version 5 of docs/CommissioningPlan/P3.16
- Timestamp:
- 01/14/22 19:03:29 (3 years ago)
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docs/CommissioningPlan/P3.16
v4 v5 1 == P3.16 Flux calibration (off-centered target observation) == 2 • **Phase** : 3 3 • **Status** : Draft 4 • **Category** : Nighttime testing (functionality and operability) (C5) + Nighttime calibration (C6) 5 • **Recurrence** : once at commissioning and then on request for deep coronagraphic observations. 6 • **Duration** : 2 hours 1 == P3.16 Instrumental throughput and absolute flux calibration == 2 3 - **Phase** : 3 4 - **Status** : Draft 5 - **Category** : Nighttime testing (functionality and operability) (C5) + Nighttime calibration (C6) 6 - **Recurrence** : once every month starting from commissioning and then on request for accurate photometry (using CI and DBI). 7 - **Duration** : 4 hours 8 7 9 **Description** 8 • Flux calibration to allow contrast estimation between the central star and a close companion, by measuring the star flux out of the coronagraph 10 - Throughput calibration to obtain absolute flux calibration of science targets. 11 9 12 **Prerequisites** 10 • Authorize SHARK-NIR on the SX side. 11 • Atmospheric conditions: AO working conditions. 12 • Bad pixel map, Background or Dark, Flat-field, distortion map 13 - Authorize SHARK-NIR on the SX side. 14 - Atmospheric conditions: AO working conditions. 15 - Bad pixel map, Background or Dark, Flat-field, distortion map 16 13 17 **Procedure** 14 • On target, the same set-up as an observation on science target; AO closed-loop, ND for bright targets to prevent detector saturation, the star behind coronagraph centered and off-centered keeping the stop. The derotator mode should be tracking the field with possible adjustment of the angle to prevent the star from rotating around the coronagraph. 15 • Observe a star with the coronagraphic devices after an offset of 0.5” is applied. 18 - Observe a spectro-photometric standard star of known magnitude with no coronagraph and required filters. 19 20 **Templates** 21 16 22 **Success criteria** 17 • Flux of the star measured within the accuracy of 0.1 mag 23 - Flux measurement better than 10% 24 18 25 **Notes** 19 • Same as activity 7.2 in AD4 26 - Same as activity 7.3 in AD4 27 20 28 **LBTO support** 21 • AO support 22 **Associated SHARK-NIR personnel** 29 - AO support 23 30 24 31 **Date performed and by whom**