Assembly, Integration & Verification(AIV)

Engineering MeetingOctober 2013Richard Lord and Adam MacLeod

• AIV Consortium Key Personnel• Work Package Description • Boundaries of Responsibility• Major Milestones• External Interfaces• Precursor Integration – MeerKAT• Precursor Integration – ASKAP

Overview

AIV Consortium Key Personnel

Organisation Contact Person Role

SKA SARichard Lord Consortium Leader and

SKA1_MID AIV Leader

Thomas Kusel Consortium System Engineer

CSIROAdam MacLeod SKA1_SURVEY AIV Leader

Antony Schinckel Participant

ASTRONJan Geralt bij de Vaate SKA1_LOW AIV Leader

Mark Bentum Participant

SKA Office Peter Hekman SKA Office Point of Contact

Further participants will join the AIV Consortium over time.

Work Package Description

Planning for all activities at the remote sites that are necessary to:

• Incorporate SKA1 Elements into existing infrastructure.• Integrate all SKA1 Elements into a Telescope System

and verify compliance to engineering requirements.• Integrate Precursors into SKA1:

– MeerKAT Precursor into SKA1_MID– ASKAP Precursor into SKA1_SURVEY

Work Package Description

I&V Plan

VR

Roll-Out Plan

Contains:• Integration Events• Test Procedures• Resources• ...

• Telescope System Requirements

• Hosting Agreements• Telescope Verification

Plans• Early-Science Plans• Commissioning Plans

1

2

3

Boundaries of Responsibility

Operational Concept Description

Telescope Requirements Specification

Element Requirements Specification

Component Specification

Design & Manufacture

ComponentAIV

ElementAIV

TelescopeAIV

Commissioning

Component Verification

Element Verification

System Verification

User Requirements Validation

Time

DesignVer

ificati

on

Pre-Construction (Stage 1+2) Construction

Boundaries of Responsibility

Engineering Development& Production

Commissioning& Early Science

Utilisation, Support& Retirement

AIV Operators,Maintainers

CommissioningTeam

Clear Task LevelBoundary

Lifecycle Stages

Major Milestones - Stage 1

# Stage 1: Milestone Description Date

1 t0 Nov 2013

2 t0 + 12w Jan 2014

3 Telescope Verification Requirements Apr 2014

4 Telescope Roll-Out Plan (Draft) Jun 2014

5 Input to Re-Baselining Exercise Sep 2014

6 PDR Submission Nov 2014

7 PDR Closure Jan 2015

Major Milestones - Stage 2

# Stage 2: Milestone Description Date

1 Kick-off Feb 2015

2 Telescope Preliminary I&V Plan Mar 2015

3 Telescope Test Procedures (Draft) Jun 2015

4 Telescope Roll-Out Plan (Final) Sep 2015

5 Telescope Detailed I&V Plan Dec 2015

6 Telescope AIV Resource Establishment Mar 2016

7 Telescope Test Procedures (Final) Jun 2016

8 CDR Submission Jul 2016

9 CDR Closure Sep 2016

Telescope Verification Requirements

Inputs:• Telescope (Level 1) Requirements

Outputs:• Methods for verification for all telescope-level requirements

(Analysis, Demonstration, Test, Similarity, etc.)• Traceability between Requirements and Verification

Requirements

Telescope Roll-Out Plan

Inputs:• Hosting Agreements• Installation constraints• Verification plan• Science priorities

Outputs:• A clear roll-out plan for all three telescopes,

1. SKA1_LOW2. SKA1_MID3. SKA1_SURVEY

• that forms the basis for delivery of elements and integration activities.

Example: SKA1_MID Roll-Out Plan

Array Release #1 AIV

# Dishes: 4

Used for:- Array Testing

Array Release #2 AIV

# Dishes: 32

Used for:- Pulsar- Spectral Line Imaging

Array Release #3 AIV

# Dishes: 64

Used for:- TBD

Array Release #N AIV

# Dishes: TBD

Used for:- TBD

MeerKAT Array Science activities

SKA1_MID number of Dishes accepted on site

SKA

1 El

emen

t ac

tiviti

esPr

ecur

sor

activ

ities

Syst

em a

ctiv

ities

SKA1 Infrastructure and “Signal and Data Transport” roll-out on site and acceptance testing

SKA1_MIDDish Qualification

Roll-out of back-end functionality, verified at corresponding Array Releases(TM, CSP, SDP)

Integration of MeerKAT Dishes into SKA1_MID Array

SKA1_MID Dish Production, on-site installation and acceptance testing

Accepted Dishes released into the array

Release #1 of back-end elements

Release #2 of back-end elements

Release #3 of back-end elements

Release #4 of back-end elements

Telescope Integration & Verification Plan

Inputs:• Verification Requirements• Roll-Out Plan

Outputs:• Verification Events• Integration Plan, incorporating the Verification Events• Test Procedures and Configurations• Requirements for specialised Test Equipment and Facilities

Example of an I&V Plan

RFE Stage 3 #1 FATs

RFE Stage 5 #1 FATs

24Aug

RFE Stage 1.5 #1 FATs

Feed/Cryo ATP

VE.1.3.2

15Jul

Pedestal Cntrl FATs

Pedestal CntrlCAM software

ready

RFEATP

EMSSEMSS25Aug

Tell

Tell

21Aug Tell

10Sep

09Sep Tell

14Aug KAT

KAT02Oct

09Oct KAT

KAT26Aug

KAT23Sep

KAT09Oct

RFE

July August September October

RFE

Tell

Tell

Tell

Tell

CSS

EMSSSE

SE

RFE

SE

VE.1.2.2

16Oct

July August September October

Early CSS/Pedestal Controller CAM

integration

CSS

SE

EMSS28Jul

EMSS

Stage 1-7 connected and set-to-work

VE.1.3.3

Integration & Test Events

Precursor South Africa

Inputs:• Hosting agreements• Discussions with SKA Office and other Element Consortia

Outputs:• Defined set of interfaces and constraints on SKA1_MID,

which will be communicated to other SKA1 Elements by the SKA Office.

Precursor Australia

Inputs:• Hosting agreements• Discussions with SKA Office and other Element Consortia

Outputs:• Defined set of interfaces and constraints on SKA1_LOW and

SKA1_SURVEY, which will be communicated to other SKA1 Elements by the SKA Office.

External Interfaces

AIV

TM

SaDT

CSP

INFRA

Precursor Integration - MeerKAT

MeerKAT Dishes

#1 #64... Weather

Stations

LMC Data

KAPB

TMSaDT

SaDT

TFR

Fibre

CSP

Data Centre

1) What is ASKAP2) How to integrate ASKAP3) Strategy for integrating ASKAP

Precursor Integration - ASKAP

What is ASKAP?

ASKAP is a 36 dish telescope- Parabolic dish, 3 axis design- 12m diameter- Baselines ranging from 22m to 6km

ASKAP uses MRO Infrastructure- The control building- Roads- Fibre within the MRO - Trunk fibre to Geraldton- Power reticulation- Weather stations- RFI monitoring

What is ASKAP?

Each dish comprises a Phased Array Feed (PAF) receiver system- Analog receive chain at the dish focus- Digital receive chain in the MRO control building

Combined, each dish + PAF system provides - 36 Dual-polarisation beams supporting 30 deg2 Field Of View- Aperture efficiency of TBC

Beams from each dish combined at the Correlator

Science Processing & Archiving performed at the Pawsey Centre

How to Integrate ASKAP

Strategy for ASKAP Integration

1) Establish signed-off ICDs with other consortia

2) Support SKA1 Elements with interface development

3) Conduct Integration Readiness Review

4) Integrate first ASKAP antenna into SKA1_SURVEY

5) Verify interfaces with SKA1 Elements

6) Integrate remaining antennas

Thank You