2013 Survey Science Group Workshop, 13-16 Feb. 2013 High-1 Resort

Giant Magellan Telescope Project

Byeong-Gon Park

2013 Survey Science Group Workshop, 13-16 Feb. 2013 High-1 Resort # 2

Contents

I. GMT Project – A Brief Introduction

II. Current Status

III.Plan 2013

2013 Survey Science Group Workshop, 13-16 Feb. 2013 High-1 Resort

Giant Magellan Telescope Project

A Brief Introduction

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GMT Overview Project period : 2003 ~ 2019(E) ~ 2022(F) Construction cost : $791M (2010) Partners : 10 ( USA, AUS, ROK) Funding :

Partner Share Goals : 85% Commitments & Received : 45% Room for 15% yet waiting for 1-2 partners

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GMT Partner Institutions

HarvardCarnegie

Texas A&M

ANU

KASI U. Arizona

Campanas

SAO

U. Texas Austin

AAL

Chicago

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GMT - Features

Features Ground-based 25 m

telescope operating at near UV, visible & IR wavelengths

Gregorian optical system with segmented primary & secondary mirrors

Alt-azimuth mount Active & adaptive optics

operation Natural seeing and AO

science instruments

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Optical Concept

Seven 8.4m Primary Mirror SegmentsPrimary mirror: f/0.7

386 m2

Secondary mirror segments – 1.05mConjugated 1:1 with primary segments

Final Gregorian focus: f/8.3

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Secondar Mirrors – ASM & FSM

• Seven 1.1 m M2 segments

• Individual six DOF positioning mechanisms

• Two interchangeable f/8 M2 assemblies

• Adaptive Secondary Mirror (ASM)

• Fast-steering Secondary Mirror (FSM)• Exchanged using the Enclosure crane

ASM

FSM

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Development Phases

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Status thru Aug 23, 2012 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q1 Q22018

FY2021 FY2022 FY2023FY20172023

FY2013 FY2014 FY2015 FY20162017

GMT Summary Schedule & Critical Path

2019 2020 2021 20222011 2012 2013 2014 2015 2016FY2011 FY2018 FY2019 FY2020FY2012

PDR

Critical Path #1

Critical Path #2

AO Installation

Mirror Segment GMT 1 GMT 2 GMT 3 GMT 4 GMT 5 GMT 6 GMT 7

Cell + dummy mirror AIT

EnclosureComplete

Facilities Available

TelescopeInstallation

Adaptive Secondary Mirror

Instrumentation

Hydrostatic Bearing FAB CompPDR CDR

Main DrivesFAB CompPDR CDR

ConstructionApproval

Phasing System

Laser Guide Star Facility

Primary Mirror Supports & Ventilation

FAB CompPDR CDR Test Cell

Coat & Install(4 Segments)

TelescopeCommission (1-4)

Telescope StructureFAB CompPDR CDR

On-Site

Install GMT 6/7

FinalCommissioning W/Adaptive Optics

Coating ChamberFAB CompPDR CDR AIT Comp

CP #1 to Initial Commisioning

CP #2 to Initial Commissioning

Fast Steering MirrorsFAB CompPDR CDR

Enclosure

ConstructionComp

Award ConstructionDocs Comp FAB Comp

Facilities

ConstructionComp

Site LevelingComp PDR

CoDR Contract Award PDR CDR Fab Comp

CoDR Contract Award PDR CDR Fab Comp

#1

#2

#3

PDR CDRASM

Delivered

ASM'sCalibrated

Integration &Perf Validation

CDRPDR FAB Comp

PDR CDR FAB Comp

ProjectClose-out

Instrument Commissioning

Test Assy

PDR

TF= 0

TF= 63

TF= 316

TF= 38

TF= 343

TF= 356

TF= 51

TF= 41

TF= 901

TF= 177

TF= 805

TF= 171CoDR Contract Award PDR CDR Fab Comp

TF= 603

ConstructionDocs Comp

TF= 89

GMT Master Plan

2013 Survey Science Group Workshop, 13-16 Feb. 2013 High-1 Resort

Giant Magellan Telescope Project

Current Status(at the end of 2012)

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Achievements

Science Case UpdatedScience Requirement Document completed in Feb. 2013

Completion of the first primary segmentSetting up of pipeline fabrication plan

Site Preparation at Cerro Campanas Selection of 1st Generation Instruments

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GMT Science Book

Science Goals

Themes

From Stars to PlanetsExoplanetsStellar PopulationsGalaxy Assembly & EvolutionCosmology and Fundamental PhysicsFirst Light & ReionizationTransient PhenomenaSynergies with other Facilities

3-4 key science questions in each area125 pages total

www.gmto.org

The objective of the GMT Project is to design, build and operate a next-generation 25 meter optical/infrared

telescope to conduct forefront astronomical research.

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Document Tree and Flow-Down

Science Case ✓✓✓✓

14

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Science Requirements Document

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Science Requirements Document

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Achievements

Science Case UpdatedScience Requirement Document completed in Feb. 2013

Completion of the first primary segmentSetting up of pipeline fabrication plan

Site Preparation at Cerro Campanas Selection of 1st Generation Instruments

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GMT #1 M1 development program: 2004 Parameters:

8.4 m diameter off-axis segment 36 m radius of curvature 15 mm aspheric departure New polishing techniques

Metrology New test tower at SOML Principal test: full aperture interferometer Verification tests:

Laser tracker Plus Scanning Pentaprism Test SCOTS test (small scale)

GMT pipeline:Capacity ~ 4 mirrors

Cadence: ~12-14 mon.

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8.4m Offf-Axis Primary

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Off-axis primary mirror segments

Segment Status

1 Completed(2012)

2Cast, core clean-out

(Backside processing in Feb. 2013)

3 Casting in Aug. 24, 2013

4 Glass purchased in 2012

Primary Mirror Segment Production

GMT2 lift-off at SOMLJune 2012

GMT in Full Primary Mirror Production Mode

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Achievements

Science Case UpdatedScience Requirement Document completed in Feb. 2013

Completion of the first primary segmentSetting up of pipeline fabrication plan

Site Preparation at Cerro Campanas Selection of 1st Generation Instruments

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Cerro Campanas Site

Manquis Ridge (2308 m)

(DuPont 100” telescope) Manqui Pk. (2450 m)

(Magellan 6.5m telescopes)

GMT SiteCampanas Pk. (2551 m)

Alcaino Pk. (2410 m)

Pan American Hwy (Route 5)

La Serena 160 kmPump station

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Preparation for the Site

First blast (3/23/12)

Site development timeline• Clearing: Mar-Aug 2012• Geotechnical testing: 2012-2013• Civil works: 2014-2015• Facility construction: 2015-2017• Enclosure installation: 2016-2017

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Before & After

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When Completed

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Achievements

Science Case UpdatedScience Requirement Document completed in Feb. 2013

Completion of the first primary segmentSetting up of pipeline fabrication plan

Site Preparation at Cerro Campanas Selection of 1st Generation Instruments

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Gregorian Instruments Rotator

Folded Ports

• ~Three Science Instruments• GLAO Assembly• Guider Assembly• Tertiary Mirror Assembly

Direct Gregorian Focus

• Four Science Instrument bays

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First Generation Instruments

28

Name Function RemarkGMACS Wide field multi-object optical spectrograph Non AOG-CLEF High dispersion, high stability optical spectrograph Non AOGMTNIRS High-Resolution NIR/MIR spectrograph AOGMTIFS NIR Integral-Field spectrograph AO

Plus MANIFEST !!

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Instruments Specifications

Instrument Function λ Range,

mμ Resolution Field of View Loc

GMACS * Optical Multi-Object Spectrometer

0.36 – 1.01500 – 4000,

10,00040 – 80 arcmin2 DG

NIRMOS Near-IR Multi-Object Spectrometer

0.9 – 2.5 2700 – 5000 42 arcmin2 DG

G-CLEF* Optical High Resolution Spectrometer

0.35 – 0.95 20 – 100K 7 x 1” fibers GIS

GMTNIRS* Near-IR AO-fed High Resolution Spectrometer

1.2 – 5.0 50 – 100K Single Object FP

TIGER Mid-IR AO-fed Imager and Spectrometer

1.5 – 14 300 0.25 arcmin2 FP

GMTIFS* NIR AO-fed IFU / Imager 0.9 – 2.5 4000 – 10,000 10 / 400 arcsec2 FP

MANIFEST** Facility Robotic Fiber Feed 0.36 – 1.0 300 arcmin2 DG

2013 Survey Science Group Workshop, 13-16 Feb. 2013 High-1 Resort

Giant Magellan Telescope Project

Plan 2013

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Status thru Aug 23, 2012 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q1 Q22018

FY2021 FY2022 FY2023FY20172023

FY2013 FY2014 FY2015 FY20162017

GMT Summary Schedule & Critical Path

2019 2020 2021 20222011 2012 2013 2014 2015 2016FY2011 FY2018 FY2019 FY2020FY2012

PDR

Critical Path #1

Critical Path #2

AO Installation

Mirror Segment GMT 1 GMT 2 GMT 3 GMT 4 GMT 5 GMT 6 GMT 7

Cell + dummy mirror AIT

EnclosureComplete

Facilities Available

TelescopeInstallation

Adaptive Secondary Mirror

Instrumentation

Hydrostatic Bearing FAB CompPDR CDR

Main DrivesFAB CompPDR CDR

ConstructionApproval

Phasing System

Laser Guide Star Facility

Primary Mirror Supports & Ventilation

FAB CompPDR CDR Test Cell

Coat & Install(4 Segments)

TelescopeCommission (1-4)

Telescope StructureFAB CompPDR CDR

On-Site

Install GMT 6/7

FinalCommissioning W/Adaptive Optics

Coating ChamberFAB CompPDR CDR AIT Comp

CP #1 to Initial Commisioning

CP #2 to Initial Commissioning

Fast Steering MirrorsFAB CompPDR CDR

Enclosure

ConstructionComp

Award ConstructionDocs Comp FAB Comp

Facilities

ConstructionComp

Site LevelingComp PDR

CoDR Contract Award PDR CDR Fab Comp

CoDR Contract Award PDR CDR Fab Comp

#1

#2

#3

PDR CDRASM

Delivered

ASM'sCalibrated

Integration &Perf Validation

CDRPDR FAB Comp

PDR CDR FAB Comp

ProjectClose-out

Instrument Commissioning

Test Assy

PDR

TF= 0

TF= 63

TF= 316

TF= 38

TF= 343

TF= 356

TF= 51

TF= 41

TF= 901

TF= 177

TF= 805

TF= 171CoDR Contract Award PDR CDR Fab Comp

TF= 603

ConstructionDocs Comp

TF= 89

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GMT 2013 Plan Staged Construction Plan Setup

Stage 1 (Early Science) : 4 Primaries, FSM, NS-instrumentsStage 2 (Full Commission) : 7 Primaries, ASM, AO-instruments

Preliminary Design Review MeetingsSub-system PDR : ~ AugustGMT System PDR : Sep. ~ Oct.

Cost estimation (capital & operation) : MarchCost for stage 1 constructionTotal constructionAdjustment of project schedule according to cost estimationFix contribution plans of partners by the end of 2013

Currently 100% committed partners : Korea (10%), Carnegie (10%), Australia(10%), Chicago (5%)

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GMT 2013 Plan

MeetingsGMTO Board Retreat : Aug. 23rd. (Tucson)GMT #3 Casting Event : Aug. 24th. (Tucson)GMTIFS Science Conference : Mar. 12th. – 13th. (Pasadena)Cosmology Conference : Jun. 10th – 12th. (Chicago)

GMT Enclosure & Facilities PDR : Jan. 16th. – 18th. (Pasadena)AO PDR : Feb. ?Telescope PDR : Aug. ?System PDR : Sep. ~ Oct.

GOAL : Construction Start on Jan. 1st, 2014

2013 Survey Science Group Workshop, 13-16 Feb. 2013 High-1 Resort

Giant Magellan Telescope Project

Thank you !!!