Changes between Version 209 and Version 210 of docs/CommissioningPlan


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Timestamp:
01/14/22 10:57:00 (3 years ago)
Author:
kradhakrishnan
Comment:

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  • docs/CommissioningPlan

    v209 v210  
    1919
    2020== Introduction ==
    21 This commissioning planning document lays out and details the activities needed to bring SHARK-NIR online for single-eye shared-risk scientific exploitation (the binocular observations with SHARK-VIS or trinocular with SHARK-VIS & LBTI are out of the scope of this commissioning plan). The document incorporates activities starting from the unpacking of the boxes at the LBT mountain bay to the early science / science verification at its final destination on the LBT platform. Although called the commissioning document, it lists the pre-commissioning, commissioning, and science verification activities. The activities are classified into four phases.  Phase 1 and 2 are purely daytime activities. Phase 3 and 4 are nighttime activities (with little daytime activity anticipated). It is to be noted that Phase 3 activities are classified into observing cases (OC#, see the table below) and '''not''' according to the observing modes (direct imaging, coronagraphic imaging, long-slit spectroscopy) anymore. This allows commencing Phase 4 (science verification) of those observing cases immediately after the competition of the respective Phase 3 commissioning run. See below for more details.
     21This commissioning planning document lays out and details the activities needed to bring SHARK-NIR online for single-eye shared-risk scientific exploitation (the binocular observations with SHARK-VIS or trinocular with SHARK-VIS & LBTI are out of the scope of this commissioning plan). The document incorporates activities starting from the unpacking of the boxes at the LBT mountain bay to the early science (or science verification) at its final destination on the LBT platform. Although called the commissioning document, it lists the pre-commissioning, commissioning, and science verification activities. The activities are classified into four phases.  Phase 1 and 2 are purely daytime activities. Phase 3 and 4 are nighttime activities (with little daytime activity anticipated). It is to be noted that Phase 3 activities are classified into observing cases (OC#, see the table below) and '''not''' according to the observing modes (direct imaging, coronagraphic imaging, long-slit spectroscopy) anymore. This allows commencing Phase 4 (science verification) of those observing cases immediately after the completion of the respective Phase 3 commissioning run. See below for more details.
    2222
    2323 **Phase 1**: We start by inspecting the boxes at LBT mountain bay, unpacking, and installing the instrument at the mountain lab (clean room) for alignment verification and functionality checks. All of these are daytime activities. [Pre-commissioning: Unpack, assemble, and clean-room verification]. This forms the content of the PSR-09 Preliminary Laboratory Integration & Test (I&T) Procedure (at LBT).
    2424
    25  **Phase 2**: The activities starting from the installation of SHARK-NIR at the SX central bent Gregorian focus of LBT, followed by preliminary functional checks, aligning SHARK-NIR to the telescope (daytime), and daytime closed dome engineering/technical testing. All of these are daytime activities. [Pre-commissioning: Installation, functional checks, and closed-dome testing]
     25 **Phase 2**: The activities start from the installation of SHARK-NIR at the SX central bent Gregorian focus of LBT, followed by preliminary functional checks, aligning SHARK-NIR to the telescope (daytime), and daytime closed dome engineering/technical testing. All of these are daytime activities. [Pre-commissioning: Installation, functional checks, and closed-dome testing]
    2626
    2727 **Phase 3**: Phase 3 commences the nighttime commissioning, starting from sending preset to the telescope to testing individual SHARK-NIR observation modes for performance to the total SHARK-NIR performance. The final form of the SHARK-NIR software, observing blocks, data-reduction pipeline, etc., will be tested for all the observing cases of the instrument. All the activities are nighttime. However, some daytime activities may be anticipated as well. There will be a common run (Run 1) to test the basic common requirements for each of the observing cases. Run 2-5 blocks represent the nighttime technical commissioning of a set of 17 observing cases. After the completion of each of these runs, SHARK-NIR will be ready for Phase 4 (science verification) of the respective observing cases.[Commissioning]
     
    9393
    9494Success Criteria
    95   - Enumerates the outcome associates with successful completion of the test
     95  - Enumerates the outcome associated with successful completion of the test
    9696
    9797Notes
     
    9999
    100100LBTO Support
    101   - Mention if (and what) support required from LBTO
     101  - Mention if (and what) support is required from LBTO
    102102
    103103Associated SHARK-NIR personnel
     
    111111
    112112== Commissioning Activity ==
    113 In this section, all the commissioning activities are listed in chronological order. If you click the individual activity, more details can be found. __8 hours is considered as the duration of a day/night__. It is to be noted that the phases do not correspond to the commissioning runs. The various commissioning runs with the list of activities to be performed (derived from this document) will be decided at a later point in time. Of course, depending on the month of the year, we will modify the actual number of days required for that specific commissioning run. From commissioning experience at the LBT, for the daytime activities at the telescope platform, the telescope can be handed over around 09:00 am local time. And we need to hand it over back to the LBT ~2 hours before the sunset (unless we have the first half of the night or full night and to be negotiated with the telescope operator). Note that the duration of the individual activities mentioned in this document will not match with that of AD4 for the same activities.
     113In this section, all the commissioning activities are listed in chronological order. If you click the individual activity, more details can be found. __8 hours is considered as the duration of a day/night__. It is to be noted that the phases do not correspond to the commissioning runs. The various commissioning runs with the list of activities to be performed (derived from this document) will be decided at a later point in time. Of course, depending on the month of the year, we will modify the actual number of days required for that specific commissioning run. From commissioning experience at the LBT, for the daytime activities at the telescope platform, the telescope can be handed over around 09:00 am local time. And we need to hand it over back to the LBT ~2 hours before the sunset (unless we have the first half of the night or full night and to be negotiated with the telescope operator). Note that the duration of the individual activities mentioned in this document will not match that of AD4 for the same activities.
    114114
    115115=== Phase 1 (Pre-commissioning)===
     
    151151'''SHARK-NIR Location''': LBT platform. All nighttime activities. Some daytime support (within SHARK-NIR) is anticipated. Also, the SHARK-NIR software, SHINS, is expected to be almost ready to be tested.
    152152
    153 Phase 3 is further divided into 5 runs. Run 1 consists of essential common activities essential for every observing case. This will be the first to be tested on-sky. Run 2-5 blocks represent the nighttime technical commissioning of a set of 17 observing cases. For each of the observing cases, only one target will be tested. The contrast obtained from the data will be used as the merit function / success criterion. If contrast is not an option, a similar (or another) merit function will be used. After the completion of each of these runs, SHARK-NIR will be ready for Phase 4 (science verification) of the respective observing cases.
     153Phase 3 is further divided into 5 runs. Run 1 consists of essential common activities essential for every observing case. This will be the first to be tested on-sky. Run 2-5 blocks represent the nighttime technical commissioning of a set of 17 observing cases. For each of the observing cases, only one target will be tested. The contrast obtained from the data will be used as the merit function or success criterion. If contrast is not an option, a similar (or another) merit function will be used. After the completion of each of these runs, SHARK-NIR will be ready for Phase 4 (science verification) of the respective observing cases.
    154154
    155155It is important to note that Run 2-5 are interchangeable. It is currently sorted to have the software complexity in the increasing order and also considering the science interest. Note that "Run N" does not mean that it is the Nth visit to the observatory. For example, Run 1 can be completed in 1 or 2 visits to the observatory, depending on the allotted time. Note also that, for individual runs (2-5), the time taken for other basic activities (such as moving from one target to another, setting up the telescope, closing the AO loop, etc.) are not explicitly mentioned in the table. For example, we anticipate, it may take between 10-20 minutes to move and set the telescope and close the AO loop from one target to another (numbers from the LUCI overheads table). This extra duration required will be mostly covered within the 20% contingency and/or the rounding up of the total nights.