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SHARK-NIR Commissioning Plan
Table of Contents
This document lays out the procedures and performance requirements for commissioning the SHARK-NIR instrument. Specifically, it lists the on-telescope activities needed to bring SHARK-NIR online for scientific exploitation starting from unpacking the boxes at LBT.
The commissioning is broadly divided into three phases:
Phase 1: We start from inspecting the boxes at LBT mountain bay, unpacking, and installing the instrument at the mountain lab for alignment verification and functionality checks. All of these are daytime activities.
Phase 2: The activities starting from the installation of SHARK-NIR at the SX central bent Gregorian focus of LBT to the acquirement of the first nighttime telescope collimation model of the instrument form the Phase 2. Most of the activities are daytime. The only nighttime activity is to check the pointing, acquisition sequence, and getting the first nighttime telescope collimation model for SHARK-NIR.
Phase 3: Phase 3 of the commissioning starts from sending preset to the telescope to testing individual SHARK-NIR observation modes for performance to the total SHARK-NIR performance. All the activities are nighttime. By the end of this phase, SHARK-NIR is ready for Science Verification.
Note that the corresponding evolving doc in the SHARK-NIR Dropbox folder is SHARK-NIR-INAFP-COM-001_CommissioningPlan.docx. There is also an excel file listing the activities titled SHARK-NIR-INAFP-COM-002_CommissioningActivityList.xlsx.
Applicable Documents
| No. | Title | Number & Issue |
| AD1 | SHARK-NIR Schedule | SHARK-NIR-INAFP-SCH-001_Issue 1.2.pdf |
| AD2 | SHARK-NIR SW ICD | SHARK-NIR-INAFP-SW-ICD-FDR Issue 0.4 |
| AD3 | SHARK-NIR Installation Plan | SHARK-NIR-INAFP-IP-001 Issue 0.2 |
| AD4 | SHARK-NIR Calibrations | SHARK-NIR-INAFP-MAN-004 |
Category
The table below lists the categories of commissioning activities.
| Category Name | Category Number |
| Installation, integration, verification | C1 |
| Daytime testing (functionality and operability) | C2 |
| Daytime calibration | C3 |
| Nighttime testing (functionality and operability) | C4 |
| Nighttime calibration | C5 |
| Nighttime testing for performance | C6 |
Naming structure of the commissioning activity
Each commissioning test/activity has a unified structure as follows:
Name of the commissioning activity
- phase: states the phase of the commissioning (1/2/3)
- status: reports the current status of the test (draft, final, complete)
- category: one of the categories mentioned above
- recurrence: describes how frequently the test must be executed
- duration: estimates the time required to complete the test
Description
- Contains a general description of the test
Prerequisites
- Lists items that must be in place before the test begins
Procedure
- Explains in detail how to execute the test
Success Criteria
- Enumerates the outcome associates with successful completion of the test
Notes
- Additional supporting information
LBTO Support
- Mention if (and what) support required from LBTO
Associated SHARK-NIR personnel
- Mentions here who are the associated personnel to the test
Date performed and by whom
- Mentions who performed the test and when
Additional Information
Note:
- as of now, there is no one to one correspondence with the evolving doc (eventually they will be the same)
- you may see that there is some repetition in the activities. this needs to be sorted out eventually.
- the order of the activities may also be changed later.
- the details of each of the activity (when you click on them individually) may not be complete and will be refined in time.
To be added:
- Nighttime performance activities:
- Evaluate the seeing performance and Strehl achieved from the LBTI AO in closed-loop and various seeing conditions.
- Look-up table activities:
- NCPA measurement for different telescope elevations?
Reminders:
- The space requirements at the mountain bay (@LBT) should be communicated to LBT at the earliest, along with the availability of crane operator, container moving tools, etc. Depending upon the month of the year, the mountain bay can be seriously booked (especially during July-October months due to summer shutdown).
- The same is true for the cleanroom near the mountain bay. If we need access to the LBTO network in the cleanroom, there are some network ports. But we may need to tell them in advance (Talk to Florian Briegel for more info).
- Note that if there is any ASM repair/activity scheduled in the cleanroom, preference is always for them and we will have to co-live or get after that.
- From the LINC-NIRVANA commissioning experience, it is always better to keep the tools associated with a particular alignment together, to avoid looking for it in all the boxes there. Also, there MUST be a living inventory wiki page where everyone should note down what is taken and kept in the box/container.
- Space required by SHARK-NIR at 3L is already mentioned to JC and CV. Later, we may need to specify the exact area.
- For activities (P2.4-P2.8) which need the RR to be mounted on the SX side, the source should be a bright broad-band source (including also NIR wavelength). Perhaps, Ocean Optics would do. Also, if helpful, we may use a powerful (green) laser beam for initial alignment checks.
Commissioning Activity
In this section, you can see all the commissioning activities listed in chronological order. If you click the individual activity, you can see more details of it.
Phase 1
SHARK-NIR Location : LBT mountain bay and clean room (Some of the activities may run in parallel).
| Number | Activity Name | Day / Night | Duration (days) | Category | LBTO Support |
| P1.1 | Inspection of the boxes | Day | 0.5 | C1 | crane operator to lift and move containers/boxes (mountain bay) |
| P1.2 | Opening boxes and their visual inspection | Day | 0.5 | C1 | crane operator to lift and move containers/boxes (mountain bay), 1-2 crew to support unpacking and moving |
| P1.3 | Install the instrument in the cleanroom with its electronics cabinet | Day | 0.5 | C1 | crane operator to lift and move containers/boxes (mountain bay & cleanroom), 1-2 crew to support installation on the mechanical structure |
| P1.4 | Cable in the instrument, power on, install workstations, and connect to LBT network | Day | 0.5 | C1 | support to connect to LBT network, IT support to install/set the workstations in the proper location |
| P1.5 | Start all the services and initialize all the motors | Day | 0.5 | C1 | - |
| P1.6 | Cool down the cryostat | Day | 1 | C1 | Liquid N2 fill in the cleanroom |
| P1.7 | Verification of the operability of the motors and light sources | Day | 0.5 | C1 | optical bench needed in the cleanroom |
| P1.8 | Verification of the internal alignment of the instrument | Day | 4 | C1 | optical bench needed in the cleanroom |
| P1.9 | Science detector calibrations | Day | 1 | C1 | - |
| Total | Contigency of 1 day | 9+1=10 |
Phase 2
SHARK-NIR Location : LBT platform
| Number | Activity Name | Day / Night | Duration (days) | Category | LBTO Support |
| P2.0 | Installation of the SHARK-NIR at LBT platform | Day | 1 (preparation) + 1 (lift-off) + 1 (contigency) | C1 | Crew members' support for the preparation, lift-off, and installation of SHARK-NIR, crane operator (mountain bay, LBT platform), safety officer, working platform installed infont of the gregorian focal-station SX, installation of electronics in LBTI/SHARK cabinet |
| P2.1 | Activating the instrument and testing instrument states & transitions | Day | 1 | C2 | support to verify the working of emergency button/stop |
| P2.2 | Instrument operability and performance | Day | 0.5 | C2 | - |
| P2.3 | TCS communication test | Day | 0.5 | C2 | Authorise SHARK-NIR, connecting to ASM+LBTI AO system, able to send preset, receiving LBT telemetry and details for the fitswriter, support from LBT SW team |
| P2.4 | Align SHARK-NIR to the telescope | Day | 1+1 | C2 | working platform installed infont of the gregorian focal-station SX, Mounting RR on the SX side. Support from LBTI/Arcetri on running SOUL AO |
| P2.5 | SOUL AO system test | Day | 0.5 | C2 | working platform installed infont of the gregorian focal-station SX, Mounting RR on the SX side. Support from LBTI/Arcetri on running SOUL AO |
| P2.6 | Measurement of NCPA | Day | 0.5 | C3 | Mounting RR on the SX side. Support from LBTI/Arcetri on running SOUL AO |
| P2.7 | Looking for filter defects/effects/features | Day | 0.5 | C2 | Mounting RR on the SX side. Support from LBTI/Arcetri on running SOUL AO |
| P2.8 | Flexure tests | Day | 2.5 | C2 + C3 | Mounting RR on the SX side. Support from LBTI/Arcetri on running SOUL AO, the telescope need to move in elevation |
| P2.9 | Nighttime acquisition and setting telescope collimation for night | Night | 0.5 | C4 | Support from LBTI/Arcetri on running SOUL AO |
| Total | Contigency included within | 11 days + half-night |
Phase 3
SHARK-NIR Location : LBT platform
Comments
MDP
- all operation that should be supported by control software automated procedures should be defined by the responsible person with software person in copy or in accordance with software department (better) (e.g.: P1.8 and P1.9)
Software Related Stuff / Activities / Reminders
- Capability to set Waffle mode to ASM in closed-loop (SOUL-AO)
- Capability to set an offset shape to ASM in closed-loop for NCPA characterization/removal
- Connection b/w scientific camera control electronics to scientific camera workstation in the control room on level 2.
- access to the server room. support will be needed to install the instrument workstation (1U Dell server) and to install the scientific camera workstation in the control room on level 2
8.4 Installation interfaces All the checks to verify the feasibility of the installation procedure of SHARK-NIR have been performed on the CAD model “SHARK Installation Final.stp”. For installation purposes, the requirements to LBTO are:
- Remove the door of the Nystrom LBTI top hatch (SX side).
- Installation of the rotator work platform at the central bent focal station, SX side.
- Use of the dome crane, to lower the subsystems of SHARK-NIR (as described in AD6) through the hatch in the UIAP LBTI platform and from the M1 side.
- Operator to move the crane.
- General assistance during the mounting phases.
8.5 Electrical interfaces SHARK-NIR electronics design is reported in AD5.
- Summary of required space in the rack (total space: 13U):
o The motor control unit dimensions are 483mm (width) x 133,35mm (height) x 525mm (depth) (also indicated as 19‘‘ × 3U × 525 mm) o The dimensions of the Lake Shore 336 temperature controller are 435 mm W × 89 mm H (2U) × 368 mm D (17 in × 3.5 in × 14.5 in) o Custom realized box: (2U in height) may contain the 2 light sources and their power supply, a motorized linear stage (M-403.2DG from Physik Instrumente), a small optical system consisting of 2 lenses and 1 filter to select the light to inject into the integrating sphere of SHARK-NIR (broadband or multi-narrow bands), the TT camera power supply and the power switches board (relais board) o DM electronics is contained in a 19” × 4U o WFC BCU housing: 19” × 2U (TBC)
- Power requirement (total Watt dissipation: 700W):
o The motor control unit maximum power consumptions is ~350W. o The Camera temperature controller maximum power consumption is of the order of ~100W. Its power requirement is 100, 120, 220, 240 VAC, ±10%, 50 or 60 Hz, 250 VA. o The C-RED2 camera needs a 12V power supply and a commercial “relais” board controllable through Ethernet, is required, to power the power supply, which has a power dissipation of the order of 10W. Custom box: power to be dissipated of the order of 100W o DM electronics power consumption is 150W. o WFC BCU: 24Vdc (48Vdc is also possible upon request) and the estimated power consumption is ~15W The agreed cabinet to allocate the above described electronics is rack 2, referring to Figure 6. The space reserved to SHARK-NIR electronics is the lowest area of the cabinet.
Figure 6: the agreed cabinet for SHARK-NIR electronic is #2. 8.6 Thermal interfaces
- Cooling:
o Daily refill of the cryostat: one LN2 refill per day is required (~10 liters). The camera LN2 hold time is of the order of 28 hours (computed in very conservative conditions, see AD7), giving a reasonable margin on the refilling time. o Liquid cooling of the technical camera C-RED 2 from First Light (through LBTO glycol system, described in RD9): Max temperature: 35°C Min Temperature: dew point Pressure: 10 bar max Cooling capacity: 100W minimum Flow rate: > 0.5 L/min Max 50% ethylen glycol aqueous solution ; 50% distilled water or deionized water
8.7 Other interfaces
- Air Flow:
o A clean air flow with a maximum required flux of 0.5 m3/min to keep SHARK-NIR optical bench on a slight over-pressure with respect to the outer environment. 8.8 Logistics 8.8.1 Connections An Ethernet cable should reach the computer rooms located at level 2. 8.8.2 Storage Space (TBD) for storage should be made available at 3L.
