vlt-min-esp-13520-0186 missionvii paranal 201408 - unige · 6/18! espressoproject! 1.2.1...

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ESPRESSO

Paranal Mission VII – 2014-08

Minutes

VLT-‐MIN-‐ESP-‐13520-‐0186, Issue 1.0

March 6th, 2015

Prepared Denis Mégevand 06/03/2014 Approved Marco Riva Alexandre Cabral Released Francesco Pepe

Centro de Astrofísica da Universidade do Porto Universidade de Lisboa, CAAUL and LOLS INAF, Osservatorio Astronomico di Trieste

INAF, Osservatorio Astronomico di Brera Observatory of the University of Geneva

Physics Institute, University of Bern Instituto de Astrofísica de Canarias

European Southern Observatory

2/18 ESPRESSO Project

Change Record Issue/Rev. Date Section/Page affected Reason/Remarks

0.10 22/08/2014 First partial version 0.20 23/08/2014 Second partial version 0.30 24/08/2014 Idem w/ added pictures 0.40 29/08/2014 Third partial version 1.0 06/03/2015 Homogenize formats

Co-‐authors: Marco Riva, Alexandre Cabral, Matteo Aliverti, Gaspare Lo Curto, Manuele Moschetti, Gerardo Avila

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Table of Contents Chapter 1. Introduction .............................................................................................................................................. 5 1.1 Scope of the Document ........................................................................................................................................................ 5 1.2 Documents ................................................................................................................................................................................ 5 1.2.1 Applicable Documents ................................................................................................................................................................ 6 1.2.2 Reference Documents .................................................................................................................................................................. 6

1.3 Acronyms and Abbreviations ........................................................................................................................................... 6 1.3.1 Acronyms .......................................................................................................................................................................................... 6 1.3.2 Abbreviations .................................................................................................................................................................................. 6

Chapter 2. Generalities ............................................................................................................................................... 8 2.1 Scheduled period .................................................................................................................................................................... 8 2.2 Teams .......................................................................................................................................................................................... 8

Chapter 3. Minutes ....................................................................................................................................................... 9 3.1 Wednesday August 20th ....................................................................................................................................................... 9

Facts and Debriefing ....................................................................................................................................................................................................... 9 Issue of the day .............................................................................................................................................................................................................. 10 Plan for 03/07 ................................................................................................................................................................................................................ 10

3.2 Thursday August 21st ........................................................................................................................................................ 11 Debriefing ......................................................................................................................................................................................................................... 11 Issue of the day .............................................................................................................................................................................................................. 11 Plan for 22-‐08 ................................................................................................................................................................................................................. 11

3.3 Friday August 22nd .............................................................................................................................................................. 12 Debriefing ......................................................................................................................................................................................................................... 12 Issue of the day: ............................................................................................................................................................................................................. 12 Plan for 23-‐08 ................................................................................................................................................................................................................. 12

3.4 Saturday August 23rd ......................................................................................................................................................... 12 Debriefing ......................................................................................................................................................................................................................... 12 Issue of the day: ............................................................................................................................................................................................................. 13 Plan for 24-‐08 ................................................................................................................................................................................................................. 13

3.5 Sunday August 24th ............................................................................................................................................................. 13 Debriefing ......................................................................................................................................................................................................................... 13 Issue of the day: ............................................................................................................................................................................................................. 13 Plan for 25-‐08 ................................................................................................................................................................................................................. 14

3.6 Monday August 25th ........................................................................................................................................................... 14 Debriefing ......................................................................................................................................................................................................................... 14 Issue of the day: ............................................................................................................................................................................................................. 14 Plan for 26-‐08 ................................................................................................................................................................................................................. 14

3.7 Tuesday August 26th .......................................................................................................................................................... 14 Debriefing ......................................................................................................................................................................................................................... 14 Issue of the day: ............................................................................................................................................................................................................. 15 Plan for 27-‐08 ................................................................................................................................................................................................................. 15

3.8 Wednesday, August 27th ................................................................................................................................................... 15 Debriefing ......................................................................................................................................................................................................................... 15 Issue of the day: ............................................................................................................................................................................................................. 15 Plan for 28-‐08 ................................................................................................................................................................................................................. 15

3.9 Thursday, August 28th ....................................................................................................................................................... 16 Debriefing ......................................................................................................................................................................................................................... 16 Issue of the day: ............................................................................................................................................................................................................. 16 Plan for 29-‐08 ................................................................................................................................................................................................................. 16

3.10 Friday, August 29th ........................................................................................................................................................... 16 Debriefing ......................................................................................................................................................................................................................... 16

3.11 Things raised pending on decision or investigated during the mission ................................................... 16 Chapter 4. Conclusions of the mission ............................................................................................................... 18


List of Figures Figure 1 Material reception and transport to CCL. ............................................................................................................... 9

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Chapter 1. Introduction

1.1 Scope of the Document After the first mission launching the preparation activities in the Combined Coudé Laboratory which took place beginning of July 2014, and during which the plates for the Vacuum Vessel and the Front-‐End Unit were installed, a second installation mission took place in August 2014, to install the Front-‐End structure and the Coudé Train L11 interface plates, which also are the closing frames of the incoherent light ducts . This document lists the actions undertaken at Paranal by the consortium, during this visit of August 2014. It lists also the various points addressed during meetings, with actions items decided and decisions taken.

1.2 Documents The main applicable and reference documents are listed hereafter.


1.2.1 Applicable Documents AD-1 ESPRESSO Statement of Work VLT-‐SOW-‐ESO-‐13520-‐5059 1 01.02.2011 AD-2 ESPRESSO Technical

Specifications VLT-‐SPE-‐ESO-‐13520-‐4633 3 01.02.2011

AD-3 ESPRESSO Project Plan VLT-‐PLA-‐ESP-‐13520-‐0007 5 25.03.2013 AD-4 ESPRESSO Management Plan VLT-‐PLA-‐ESP-‐13520-‐0015 4 25.03.2013

1.2.2 Reference Documents RD-1 ESO-‐Paranal Observatory ICD VLT-‐ICD-‐ESO-‐13529-‐5412 2 25.03.2013 RD-2 Upgrades to Paranal

Observatory Technical Infrastructure

VLT-‐TRE-‐ESO-‐13529-‐5411 2 25.03.2013

1.3 Acronyms and Abbreviations The main acronyms and abbreviations are listed hereafter.

1.3.1 Acronyms AD Applicable Document AI Action Item CCL Combined Coudé Laboratory CPR Computer Room CR Coudé Room ESPRESSO Echelle Spectrograph for Rocky Exoplanets and Stable Spectroscopic Observations FES Front-‐End Structure FE(U) Front-‐End (Unit) LFC Laser Frequency Comb LT Laser Tracker PLO Paranal La Silla Observatory PM Project Manager, Progress Meeting RD Reference Document SCP Service Connection Point SE System Engineer TC Teleconference UPS Uninterrupted Power Supply UT Unit Telescope VLT Very Large Telescope VV Vacuum Vessel WP(M) Work Package (Manager)

1.3.2 Abbreviations ACA Alexandre Cabral (ESP) DME Denis Mégevand (ESP) FGO Fréderic Gonté (PLO)

VLT-‐MIN-‐ESP-‐13520-‐0186, Issue 1.0 7/18 FLU Fernando Luco (PLO) GAV Gerardo Avila (ESO ESP) GLC Gaspare Lo Curto (ESO) HBA Hermann Barrios (CONYSER, civil work) HUG Hugo Guttierez (CONYSER, warehouse) ICO Igor Coretti (ESP) IHU Ian Hughes (ESP) MAL Matteo Aliverti (ESP) MMI Manuele Moschetti (ESP) MPO Matteo Pozzobon (PLO) MRI Marco Riva (ESP) MSC Marcel Schroeder (CONYSER, warehouse) MTA Mario Tapia (PLO) ODI Oscar Diaz (CONYSER, civil work) PBO Pierre Bourget (PLO) RCA Robin Capocci (PLO)


Chapter 2. Generalities This section presents generalities concerning the visit made at Paranal in August 2014.

2.1 Scheduled period The mission extended over the period from August 20th to August 29th. Some people attended partly the mission, due to their schedule or to the need of their presence. This is indicated in the composition of the team hereafter.

2.2 Teams The team attending this “plate installation” mission in Paranal was composed, for the consortium, by:

• Matteo Aliverti (MAL), Front-‐End Unit WPM, 20.08.14 -‐ 25.08.14 • Gerardo Avila (GAV), Paranal Interfaces WPM, 24.08.14 -‐ 30.08.14 • Alexandre Cabral (ACA), Interfaces Engineer, Coudé Train WPM, 20.08.14 -‐ 29.08.14 • Denis Mégevand (DME), Project Manager, 20.08.14 -‐ 29.08.14 • Manuele Moschetti (MMI), Front-‐End Unit, 20.08.14 -‐ 29.08.14 • Marco Riva (MRI), Deputy System Engineer, 20.08.14 -‐ 29.08.14

And for the customer ESO by:

• Gaspare Lo Curto (GLC), Project Contact, 20.08.14 -‐ 23.08.14 The ESO staff members and contratists met at Paranal were:

• Pierre Bourget (PBO), engineering; • Robin Capocci (RCA), security; • Oscar Diaz (ODI) CONYSER; • Fréderic Gonté (FGO), instrumentation enginer, ESPRESSO Paranal contact person • Hermann Barrios (HBA), CONYSER; • Hugo Guttierez (HGU), warehouse; • Fernando Luco (FLU), civil engineering; • Marcel Schroeder (MSC), warehouse; • Mario Tapia (MTA), responsible of the mechanical workshop;

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Chapter 3. Minutes This visit intended to be focused on two subjects, the installation of the structure of the Front-‐End and the installation of CT interface plates in the CCL, called L11 frames. Nevertheless, some discussions were foreseen on other subject like the Coude Train CREs and some still open points concerning the scheduling of next activities, in Europe and in Paranal. The daily work had as usual to be scheduled daily to take into account the presence and availabilities of the Paranal contact persons, and the constraints of the Paranal operations. During his presence, GLC attended the 9:00 and 16:30 daily meetings to coordinate with Paranal activities. After his arrival, GAv took avier this task. In between, DME ensured the interim. At the end of every day, we had a debriefing meeting to summarize the addressed points, the conclusions, agree on the conclusions to be reported in the minutes and to prepare the plan for the next day. This daily work is reported in these minutes. They are therefore presented chronologically, with inclusion of the meetings minutes, when relevant.

3.1 Wednesday August 20th

Facts and Debriefing

• Trip from Santiago of the following consortium members: o Matteo Aliverti o Alexandre Cabral o Denis Mégevand o Manuele Moschetti o Marco Riva

• Our material arrived one day in advance, on Tuesday 19th. GLC received it and managed the unloading and transportation to the CCL.

Figure 1 Material reception and transport to CCL.

• Security induction course with the security officer, Robin Capocci (RCO) for MMI and ACA.


• Got their security material at the warehouse • We have been assigned two cars, number 75 and 159. The 159 is missing, borrowed by the

contratists. We got the 99 instead. • GoPro timelapse camera installation (DME) • Unpacking of the FEU structure (MRI, MAL, MMI). Test how to manipulate it with portable

crane. • Calibration of the Laser Tracker (LT), which was preliminarily warmed up by GLC. • Realigning of the coordinate system • Reacquired the central pin and some plates’ holes. • GLC and ACA had a meeting with Mario Tapia (MTA)

• Manufacturing of the CT interface flanges. • The flanges for P5, P6, P7 L10 and light duct cover were presented and detailed to MTA. • Mario remarked the need for tolerances to define the manufacturing strategy as well as to

estimate the manufacturing time. • This information is mandatory before moving forward. • The material to be used (St 1.0038/S235(JR)) is available in Chile, or at least an

equivalent one. There is even some stock for P5 and P6 flanges (to be replaced if used). • For the profiles in P7 and L10 flanges, MTA provided a catalog with the profiles existing

in Chile and the CT team will adapt the design to those profiles if the decision to manufacture them in Paranal is taken.

• MTA gave an estimation of required men-‐hour for the manufacturing of the parts: o P5 15 to 20 men hours o P6 15 to 20 o P7 35 to 40 o L10 116 to 138 o Cover 20 to 24 o Others 20 to 25

• Considering the worst case and a 10% contingency we obtain 300 men hours for the manufacturing of these parts in Paranal.

• The procurement of the materials might take 1 month, but some parts might start earlier due to existing stock.

• The drawings will be detailed with all required tolerances for a more accurate estimation of manufacturing time.

• The painting of the parts (black mate) can be done in Paranal. The option for the surface treatment shall be taken later considering what, fulfilling the requirements, is more appropriate to be done in Paranal.

• The manpower in the workshop is tight. • Only 15% of their resources can be dedicated to projects. • And this must be shared by all projects. • Therefore it might be more efficient to hire some contractors, possibly well known

personnel that already worked in the workshop. • Mario / Matteo to give indication on that. • They should be contracted on a monthly basis.

Issue of the day

Alex

Plan for 03/07

1. TC with FES manufacturer

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2. Move LT to convergence point (Morning) 3. Align laser tracker through inclinometer (Morning) 4. Mark the feed-‐through (Morning) 5. Align reference plate (Morning) 6. Take measurements of CR, Reference plate, Walls, VV holes (Morning) 7. Mount clock system (Morning-‐Afternoon) 8. Moving of the Laser Tracker, recalibration and acquisition of center point (Afternoon) 9. Preliminary Marking of the holes through nominal position of the laser tracker

(Afternoon) 10. Deployment of balancer and metrology of relative position of the plates (Afternoon)

3.2 Thursday August 21st

Debriefing

• 9.30 Check of UT2 CR flange (Done. UT 3 and 4 checked good result) • 11.00 ACA, GLC and DME meeting with Pierre Sansgasset, Paranal System Engineer

(Done) • Assemble alignment tool laser, PRS 200 and Manta (Done) • Mount alignment tool on ceiling (Done) • Mount clock alignment tool for FES (to be done) • Clock alignment of FE and lock of it (postponed to tomorrow) • Mount arms for the clock (Done) • Tip tilt of toggling system preliminary check and seems to be good (Done) • Check Alex material brought in the previous mission (partially done) • Cut CR duct covers (Done) • Measure L10 diameter in the proper position (postponed to tomorrow) • Agreed of CT presentation of Alex to Paranal engineers on Tuesday morning (Done) • Open L11 flanges box (Done) • Cross-‐verification of the L11 template, frames and covers (ongoing)

Issue of the day

• Opening of the L11 flanges box • Flanges not engraved

Plan for 22-08

1. Recover luggage of Alex 2. Finalize the clock and fixation of the structure 3. PRS200 tip tilt alignment 4. Laser pre-‐alignment 5. Analyze aperture on light duct for ut3 (corridor and bodega) 6. Measure L10 diameter in the proper position 7. Cross-‐verification of the L11 template, frames and covers


8. Try to detect the iron in the wall 9. Discussion of management for next months

3.3 Friday August 22nd

Debriefing

• Recover luggage of Alex (Done) • Finalize the clock and fix of structure (Done) • PRS200 tip tilt alignment (Done) • Laser pre-‐alignment (Done in tip-‐tilt) • Analyze aperture on light duct for ut3 (corridor and bodega) (Done) • Measure L10 diameter in the proper position (postponed to tomorrow) • Cross-‐verification of the L11 template, frames and covers (Done) • Try to detect the iron in the wall (Done) • Discussion of management for next months (ongoing) • Measurement of UT3 L11 dimension of duct and iron detection. • Contratists tested the vacuum fixation for the big driller. • Contratists fixed the damaged surface near UT4 duct. • GLC prepared the sending back of the Laser Tracker. • GLC discussed with MPO concerning the point 5 (Duct aperture). He things it is OK • The Hilti threaded bars and resin is ordered for L11 flanges fixation.

Issue of the day:

• Manuele computer fall down.

Plan for 23-08

1. Measure light duct at L10 position 2. Installation of the CR light duct covers and targets 3. XY alignment of the laser 4. Mount the pentaprism and shine laser into the tunnels 5. Measure the height of the laser 6. Acquire the final reference of the FES

3.4 Saturday August 23rd

Debriefing

• Measure light duct at L10 position (Done) • Installation of the CR light duct covers and targets (Done) • XY alignment of the laser (Done) • Mount the pentaprism (Done) and shine laser into the tunnels (Done) • Measure the height of the laser (Done)

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• Acquire the final reference of the FES (not done, delayed to tomorrow) • GLC left at 16:20 to Santiago • Preliminary clock encoder definition for all UTs. The alignment is done with an error of

17 arcsecond of tilt of the plane defined by the four CR. This is acceptable but we will try to enhance it tomorrow .

• Management discussion to define next missions and delta FDR schedule. • The CT alignment sensor was tested, SW was debugged.

Issue of the day:

• UT3 flange in CR has one screw hole displaced by a few mm.

Plan for 24-08

1. Acquire the AS installed reference of the FES 2. Improve the alignment of the laser by shining to UT1 and UT4 CRs 3. Re-‐center XY 4. Definition of the clock encoder position for all UTs 5. Position the pentaprism height to the mean height of the CR duct centers 6. Preliminary activities concerning the L11 frames holes marking 7. Welcome Gerardo

3.5 Sunday August 24th

Debriefing

• Acquire the AS installed reference of the FES (almost done) • Improve the alignment of the laser by shining to UT1 and UT4 CRs (Done) • Re-‐center XY (Done) • Definition of the clock encoder position for all UTs (Done except UT3) • Position the pentaprism height to the mean height of the CR duct centers (postponed) • Preliminary activities concerning the L11 frames holes marking (postponed) • Checking of possible interference between template and column (Done: no interference) • Welcome Gerardo (Done) • Visit of UWE • Meeting with Frederic Gonté

• Run the cabling of P5-‐P6 cabinets along structure • Protect the P6 mechanism to allow people to work on M8 without risks for P6. • No work in Paranal that wasn’t approved at a FDR.

Issue of the day:

• UT3 flange in CR has one screw hole displaced by a few mm. • Indexing issue solved • Fluctuation higher in UT4


Plan for 25-08

1. Check availability of contratists 2. UT3 clock alignment 3. Z alignment according to measurement 4. Marking of the holes of UT3 in CCL 5. Check of UT1, UT2 and UT4 6. Marking plate position of UT1, UT2 and UT4 7. Start drilling of plates holes 8. Acquire the height of optical axis plane 9. @20.30: seminar of Gerardo on optical fibers

3.6 Monday August 25th

Debriefing

• Check availability of contratists (Done) • UT3 clock alignment (Done) • Z alignment according to measurement (Done) • Marking of the holes of UT3 in CCL (Done) • Check of UT1, UT2 and UT4 (Done) • Mark of plates of UT1, UT2 and UT4 (Done) • Start drilling of plates hole (Done) • Acquire the height of optical axis plane (Done) • @20:30 seminar of Gerardo on optical fibers (Done, very nice demonstrations) • Goodbye to Matteo (Done) • Marking of plate position of plates for plan C (Done)

Issue of the day:

• Repeatability of PRS200 procedure: to be (re-‐)defined

Plan for 26-08

1. Start drilling with the hole saw 2. Drill and fix UT3 frames 3. 10:00 meeting with Paranal engineers to present and discuss the CT CREs. 4. Assemble structure to hold plates

3.7 Tuesday August 26th

Debriefing

• Start drilling with the hole saw (UT4 and UT3 done) • Drill and fix UT3 frames (Drilling done, without fixing) • 10:00 meeting with Paranal engineers to present and discuss the CT CREs (Done)

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• MPO remarks that threaded holes in the ducts would be preferable to stud welds for attaching the covers, as they are curved.

• Route the cabling of the P7 below CR ceiling rather than above inner track floor. This implies not to prepare the cables now.

• SGU remarked that the change of Gerardo periscope from prisms to mirrors should have been also presented to him, as a reviewer of the optics, and as he will have to make the maintenance of that. To be followed and clarified with GLC.

• The front cover of P6 was discussed and the problem of the possible omission to remove it after intervention was mentioned by MPO. There should be either something automatic or a clear procedure to be put in place for this.

• Assemble structure to hold plates (Done) • Received Hilti material

Issue of the day:

• Perpendicular iron rod into the holes non removable so decision taken to shorten sleeves because it will not be possible to remove this iron to 9.5 cm.

• Sleeves too big for the holes, they will need to be adjusted.

Plan for 27-08

1. Test of chemical pumping 2. Adjustment of the sleeves 3. Fixation of UT3 and UT4 frames 4. Completion of holes for UT1 and UT2 5. Fixation of UT1 and UT2 frames if holes drilled.

3.8 Wednesday, August 27th

Debriefing

• Adjustment of the sleeves (Done for UT2, UT3 and UT4) • Fixation of UT4 flanges (Done) • Fixation of UT3 flange (Done) • Completion of holes in UT2 (Done) • Fixation of UT2 flange (Done) • Test of chemical pumping (not needed)

Issue of the day:

• Remaking of UT3 short sleeves, the first cut didn’t hold. It is a good lesson learned for the UT1 ones

Plan for 28-08

1. Finish holes in UT1 2. Adjustment of UT1 sleeves


3. Fixation of UT1 4. Laser tracking of flanges 5. Protect and cover the structure and the pentaprism 6. Glue labels 7. Start to order the mess 8. I/F meeting 9. Prepare software for toggling and laser guiding

3.9 Thursday, August 28th

Debriefing

• Finish holes in UT1 (Done) • Adjustment of UT1 sleeves (Done) • Fixation of UT1 (Done) • Laser tracking of flanges (Done) • Protect and cover the structure and the pentaprism (Done on the pentaprism,) • Glue labels (will be done in a next mission, after the silicon has been put) • Start to order the mess (started) • I/F meeting (postponed to the guesthouse) • Prepare software for toggling and laser guiding (started)

Issue of the day:

• Collect enough bread for the evening fondue, where were invited the contratists.

Plan for 29-08

1. Cover the structure 2. Finish to order stuff, empty the CCL, clean everywhere

3.10 Friday, August 29th

Debriefing

• CCL was emptied, with the help of the contratists. • Structure covering and feet protected • LFC room was ordered and cleaned • Trip to Santiago for the whole crew.

3.11 Things raised pending on decision or investigated during the mission

• Keep under control the hole drilling strategy: hybrid solution was chosen (12 mm holes and mechanical sleeves where possible, 16mm holes and chemical ones in case of iron)

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Hybrid solution is not working due to the low accuracy of drilling with normal driller, we decided to come back to the full 16mm solution for the UT1, UT2 and UT4. UT3 is only a closing frames, positioning is not sensitive, so we used it for the tests and will leave an hybrid solution.


Chapter 4. Conclusions of the mission The preparatory work for ESPRESSO in the Observatory infrastructure is multifold and touches a lot of different locations in the Observatory. Mainly the Combined Coudé Laboratory (CCL), the incoherent light ducts to the four UT, the four Coudé Rooms (CR) and the structure of the four UTs. This mission intended to touch only the CCL and to achieve the following goals:

• Install the front-‐end structure, align it. • Use the rotary stage of the toggling mechanism to shine the alignment laser in the ducts to

precisely define the center of the L11 flanges. • Mark and drill the holes for these flanges and install them.

These three goals were fully achieved. Several Change Requests (CRE) were submitted to the Observatory to adapt the infrastructure of the CCL. They were approved in early summer 2014, and several have already been achieved by LPO staff before the first mission in July: modification of the lights, relocation of the fire extinguisher. In addition, LPO civil contratists have prepared a plastic separation of the CCL to allow civil work to be done cleanly and without dust contamination of the present instrumentation. Several others have been achieved during the July mission and this one. The remainings will be achieved in September by LPO staff and contracted enterprise (pouring resin on the ground of the CCL), and after the installation of the thermal enclosures foreseen in November (separation of the lights located in the 1T part of the laboratory). This mission was very fruitful, and we must thank all the involved people, consortium staff members that prepared properly the mission, found alternatives when problems were encountered and just did the job with efficiency and professionalism. We also have to underline the very good collaboration and support we got when needed from Paranal staff, and particularly Paranal contratists. Particular thanks to Gaspare Lo Curto, who acts very efficiently as our interface with the Observatory as well as to Hermann Barrios and Oscar Diaz, who managed the civil work.