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Acronym

Meaning

Explanation

Used in / Link

A

AD

Applicable Document

Legally binding documents and reports

AIV

Assembly, Integration and Verification

To be replaced by AIT

AIT

Assembly, Integration and Test

ANDES

ArmazoNes high Dispersion Echelle Spectroscopy

Name of the instrument

All documents

B

C

CCD

Charged Coupled Device

Area detectors

CR

Coudé-room

Part of the ELT

CU

Calibration Unit

Subcomponent

D

E

ELT

Extremely Large Telescope

ESO

European Southern Observatory

F

F2F

Fiber-To-Fiber link

In-fiber connection point

FDR

Final Design Review

Milestone of the project, controlled by ESO

FE I-IV

Front End I-IV

Pickup of the beam coming from the telescope.

FP

Fabry-Pérot

Etalon, Interferometer, Resonator in Literature

FSR

Free Spectral Range

Spectral range between two spectral features

FTS

Fourier-Transform Spectrograph

G

GPS

Global Positioning System

H

HCL

Hollow-Cathode Lamps

Wavelength calibration lamps

CU

HIRES

High Resolution Spectrograph

Outdated name of the instrument /project -> ANDES

I

ICD

Interface Control Document

ESO-Standard, that is used to define Interfaces and their Responsibility

IFU

Integral Field Unit

ILS

Instrumental Line Shape

See Definitions below

IP

Instrumental Profile

see also linespread function or ILS

IR

Infrared

J

K

L

LDP

Light Distribution Point

Connects, switches light sources to the OUP of the CU

LUT

Look-Up table

M

mas

Milli-arcseconds

N

O

OM

Observing Mode

OUP

Output Port

Fiber ports used in the CU → Optical Interface to the Fiber WP

P

PA

Product Assurance

PAE

Preliminary Acceptance Europe

ESO-controlled milestone of the project

PCF

Photonic Crystall Fibre

Used in the Astrocomb for spectral broadening

PD

Photodiode

PDR

Preliminary Design Review

ESO-controlled milestone of the project

PHL

Preliminary Hazard List

PI

Principal Investigator

PT

Product Tree

Q

QA

Quality Assurance

R

RD

Reference Documents

background references only.

RP

Resolving Power

lambda/deltaLambda

S

SE

Systems Engineer

SoW

Statement of Work

T

TBC

To be Confirmed

TBD

To be Defined (frequently To be Discussed)

TLR

Top Level Requirement

TRL

Technical Readiness Level

U

V

VIS

Visible Range of Light

(400 nm - 700 nm as defined by ISO Standards)

W

WBS

Work Breakdown Structure

WLM

Wavelength Marker

frequency-stabilized Lasers, used in the CU to anchor the wavelength solution

WP

Work Package

X

Y

Z

Definitions

The following lists include definitions for terms to be used in the respective field.

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