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Table 1.
Commissioning runs and technical missions on ESPRESSO.
| Commissioning run | Start date | End date | Tested modes and telescopes |
|---|---|---|---|
| First light | 27/11/2017 | ||
| Commissioning 1A | 27/11/2017 | 06/12/2017 | HR and UHR modes, all UTs |
| Commissioning 1B | 26/01/2018 | 07/02/2018 | All modes and all configurations |
| Commissioning 2A | 25/02/2018 | 07/03/2018 | All modes, all UTs |
| Technical activities | 07/03/2018 | 21/03/2018 | All subsystems |
| Commissioning 2B | 27/04/2018 | 05/05/2018 | HR and UHR mode, all UTs |
| Technical activities | 13/09/2018 | 21/09/2018 | Vacuum and cryogenics optimization |
| Official start of operations | 01/10/2018 | ||
| Technical activities | 03/10/2018 | 23/03/2018 | Optical efficiency tests and re-alignment |
| Commissioning 2C – July 2018 | 03/07/2018 | 09/07/2018 | All modes and all configurations |
| 4-UT Commissioning – December 2018 | 30/11/2018 | 01/12/2018 | MR mode, all UTs |
| Technical activities | 08/06/2019 | 27/06/2019 | Fiber upgrade |
| Recommissioning – July 2019 | 27/06/2019 | 08/07/2019 | All modes and all configurations |
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