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VG-NT-2-C-0012-CNES-eng.doc Version validée SDS Imprimé le 16 / 04 / 03

CENTRE NATIONAL D'ETUDES SPATIALES

Sous-Direction Développements Sol

18, Avenue Edouard-Belin 31401 TOULOUSE Cedex 4

Rond-point de l'Espace 91023 EVRY Cedex

SDS/G BP 254 - 97377 KOUROU CEDEX

CODE IDENTIFICATION PROJET

VG-NT-2-C-0012-CNESEDITION : 1 REVISION : 0

Date édition ou dernière révision :11/02/2003

REF. D'AUTEUR :SDS/PL/SV/2003-00048

CLASSE : 1 CATEGORIE : 1

RESERVE A L'INDUSTRIEL

PROJET : VEGA GROUND SEGMENT

TITRE DU DOCUMENT :

VEGA GROUND SEGMENT

GENERAL PRESENTATION

NOM & FONCTION DATE & SIGNATURE

PREPAREPAR :

Project Team

POURAPPROBATION :

POURACCEPTATION :

APPLICATIONAUTORISEE

PAR :

Marc VALESProject Coordinator

LISTE DE DIFFUSION Nb A I

SDS/PL 1 X

SDS/SM 1 X

SDS/AP 1 X

SDS/SG 1 X

SDS/G 1 X

SDS/D + DA 1 X

DLA/RAP/ADS 1 X

DLA/SDT/SP 1 X

DLA/D 1 X

ESA/LAU-V/IPT M. CARDONE 1 X

ESA/IMT Mme. CROWTHER 1 X

A=Action I=Information



Sous-Direction Développements Sol

18, Avenue Edouard-Belin 31401 TOULOUSE Cedex 4

Rond-point de l'Espace 91023 EVRY Cedex

SDS/G BP 254 - 97377 KOUROU CEDEX

LANGUE :Fr EDITION : 1 REVISION : 0

DATE D'EDITION OU DERNIERE REVISION : 11/02/2003

CODE IDENTIFICATION PROJET

VG-NT-2-C-0012-CNES

FICHESIGNALETIQUE

FICHIER INFORMATIQUE

C:\WINNT\Profiles\Commun\Bureau\VEGA\VegaAnglais\SVMV0004803.10A.doc

Nombre de pages totales (y/c annexeset pages de garde) : 24

Nb de pagesannexes :

TITRE :

VEGA GROUND SEGMENT

GENERAL PRESENTATION

NOM (S) AUTEUR (S)Project Team

TYPE DE DOCUMENT

NOTE TECHNIQUE

CLASSEMENT PHYSIQUE N° MARCHE CLASSE : 1

CATEGORIE : 1

RESUME D'AUTEURPresentation of the VEGA Ground Segment design.

MOTS CLES (mis par l'auteur) RESERVE AUX INDUSTRIELS

Vega



Titre du document :

VEGA GROUND SEGMENTGENERAL PRESENTATION

Sous-direction Développements Sol

VG-NT-2-C-0012-CNES

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EDITION REVISION DATE OBJET DE LA MODIFICATION

1 0 11/02/2003 Edition Originale.



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SOMMAIRE

1. DOCUMENT PURPOSE....................................................................................................................................................5

2. GLOSSARY .........................................................................................................................................................................6

3. VEGA GROUND SEGMENT PRINCIPAL MISSIONS.................................................................................................8

4. GENERAL OPERATIONAL REQUIREMENTS AND CONSTRAINTS....................................................................9

4.1. OPERATIONAL REQUIREMENTS FOR CHRONOLOGY ........................................................................................................94.2. OPERATIONAL REQUIREMENTS AND CONSTRAINTS WITH RESPECT TO A5....................................................................104.3. OPERATIONAL REQUIREMENTS WITH RESPECT TO PAY LOADS ....................................................................................10

5. LIFE PHASES DESCRIPTION.......................................................................................................................................11

6. VEGA GROUND SEGMENT MAIN DEFINITIONS...................................................................................................12

7. DESIGN CONSTRAINTS ................................................................................................................................................13

7.1. GROUND SEGMENT COST RELATED DESIGN CONSTRAINTS...........................................................................................137.2. GROUND SEGMENT TECHNICAL DESIGN CONSTRAINTS................................................................................................137.3. GROUND SEGMENT GENERAL DESIGN CONSTRAINTS ...................................................................................................13

8. COMPOSITION OF THE GROUND SEGMENT.........................................................................................................14

9. GENERAL ARCHITECTURE........................................................................................................................................15

9.1. GROUND SEGMENT GENERAL DESIGN: MOBILE GANTRY.............................................................................................179.2. GROUND SEGMENT GENERAL DESIGN: BUNKER ..........................................................................................................199.3. GROUND SEGMENT GENERAL DESIGN: BCV................................................................................................................219.4. GROUND SEGMENT GENERAL DESIGN CDL.................................................................................................................21

10. GROUND SEGMENT INTERFACES........................................................................................................................22

11. MODIFICATION OF THE EXISTING FACILITIES .............................................................................................24



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1. DOCUMENT PURPOSE

The purpose of this general presentation is to give a technical over view of the VEGA Ground Segmentbased on the Preliminary Design Review.

This document is addressed to actors of the project who are not technically involved and shall beincluded in all Industrial Invitation To Tender files in order to enlarge the view of tenderers.

This document is only informative and does not take priority over any of the requirement documents.



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2. GLOSSARY

A5 CCO Contrôle Commande Opérationnel d’Ariane 5 Ariane 5 Operational Control BenchAR5 Ariane 5 Ariane 5AVUM Etage supérieur du lanceur VEGA Attitude Vernier Upper ModuleBCS Bureau de Coordination Sauvegarde Office for Safety CoordinationBCV Banc de Contrôle Commande VEGA VEGA Command Control BenchBGQ Bureau de Gestion Qualité Office of Quality ManagementBIP Bâtiment Intégration Propulseur Building of Propeller IntegrationBLA Base de Lancement Ariane Ariane Launch BaseBT Bureau Technique Technical OfficeCCS Contrôle Commande Servitude Services Control BenchCDL Centre De Lancement Launch CenterCDL3 Centre de Lancement n° 3 d’Ariane 5 Ariane 5 Launch Center n°3CDLV Centre De Lancement VEGA VEGA Launch CenterCOPA Centre Opérationnel de Planification des Activités Activities Planning Operational CenterCSG Centre Spatial Guyanais Guianese Spatial CenterDC/AC Courant Continu/ Courant Alternatif Direct Current / Alternative CurrentELA Ensemble de Lancement Ariane Ariane Launch SiteELA1 Ex-Ensemble de Lancement n° 1 Former Launch Site n°1ELA2 Ensemble de Lancement n° 2 (ARIANE 4) Launch Site n°2 (ARIANE 4)ELA3 Ensemble de Lancement n° 3 (ARIANE 5) Launch Site n°3 (ARIANE 5)EPCU Ensemble de Préparation Charges Utiles Payload Preparation FacilitiesEPS Etage à Propulsion Solide d’Ariane 5 Ariane 5 Solid Propulsion StageFO Opérationnel après un Défaut Fail OperationalGhe Hélium gazeux Gaseous HeliumGN2 Azote gazeux Gaseous Nitrogen



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H0 Instant de référence pour la chronologie de lancement : cet instantcorrespond généralement à l’allumage du moteur du 1er étage dulanceur.

Reference instant for Launch chronology: this instant generallycorresponds to motor ignition of launcher 1st stage

HA Hall d’Assemblage Assembling HallHTBT Haute Tension Basse Tension High Tension Low TensionICPE Installation Classée pour la Protection de l’Environnement Classified Installation for Environmental ProtectionI/F Interface InterfaceJ0 Jour où le lancement est prévu DØJ1 Jour suivant le lancement D1NTO N2O4 : Peroxyde d’Azote Nitrogen TetraoxydOB Systems Systèmes bord On Board SystemsP23 2ème étage du lanceur VEGA étage à 23 tonnes de poudre Z23P80 1er étage du lanceur VEGA étage à 80 tonnes de poudre Vega 1st stage P80P9 3ème étage du lanceur VEGA étage à 9 tonnes de poudre Z9PABX link Central Téléphonique (Autocommutateur) Private Automatic Branch ExchangePAP Propulseur d’Appoint à Poudre Strap-on boostersRF Radio Fréquence Radio FrequencySTFO Système de Transmission par Fibre Optique Optical Fiber Transmission SystemTBC A Confirmer To Be ConfirmedTBD A décider To Be decidedTC Télécommande TelecommandTM Télémesure TelemetryUDMH Diméthylhydrazine AsymétriqueUPG Usine de Production Propergol de Guyane Solid Propellant Factory of GuyanaZES Zone Ergols Stockables Storable Propellant ZoneZL Zone de Lancement Launch ZoneZLV Zone de Lancement VEGA VEGA Launch Zone



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3. VEGA GROUND SEGMENT PRINCIPAL MISSIONS

VEGA Launch Site (SLV), ICPE classified site, is a compound dedicated to perform VEGA launchcampaign operations:

- transport and storage of launcher components (P80, P23, P9, AVUM and payload),- final integration and acceptance of the launcher 1st stage (P80),- preparation and integration of the payload on the launcher,- integration and verification of the launcher.

Ariane Launch Base is also involved to provide general and specific supports including:

- telemetry and radar tracking of the launcher in flight,- post-launch flight data analysis.



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4. GENERAL OPERATIONAL REQUIREMENTS AND CONSTRAINTS

The VEGA ground segment must be operational for an initial launch scheduled for mid 2006:

- rate = 4 launches per year for at least 10 years,- inter-launch interval = minimum 1 month,- launch campaign = 10 to 11 days,- final preparation phase and countdown = max. 1 day,- number of countdown over 3 consecutive days = 3,- standardisation of equipment with that of other ELA sites must be taken into account for

optimised synergy with operating teams and spares,- availability requirements: ground segment launch probability factors are :

� 82.8% at H0,� 10.2% after H0,� 6.5% for J1,� 0.5% after J1.

4.1. Operational requirements for chronology

- countdown duration = < 2 hours (TBC),- reference launch window = 3 hours (TBC),- synchronised sequence duration = < 5 min (TBC). If the synchronised sequence is stopped,

the systems are returned to the "Synchro ready" state, ready for restart at the beginning ofa new synchronised sequence,

- number of synchronised sequences per countdown = 5,- countdown breakdown:

� ground segment and launcher preparation phase,� "synchro ready" phase, during which the ground and On Board systems are

ready and waiting for the synchronised sequence,� synchronised sequence phases, comprising final pre-launch operations,

confirming launcher readiness on the ground and referenced to time H0,� ignition/lift-off phase,

- it must be possible to stop the launch safely at any time before H0.



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4.2. Operational requirements and constraints with respect to A5

The design of ground and on board systems must provide minimised operational constraints betweenAR5 and VEGA campaigns during VEGA countdowns.

The design of ground and on board systems should not lead to operational constraints outsidecountdown rehearsals with the BLA, launch countdown (for which links with the BLA are configured)and stage transfers.

Ground checkout equipments must be independent from the ELA3 ones (apart from utility services).The delay required for configuration of links with the BLA and associated verifications shall beminimised.

Ariane 5 transport and handling facilities (apart from the gantry travelling crane) of the CSG shall bereused for VEGA.

4.3. Operational requirements with respect to Pay Loads

Mission change: at least 2 months (TBC) before the launch date.

Operational constraints between the launcher and payload campaigns must be reduced to theminimum.

The design of ground and OB systems shall allow integration of the payload at the latest possiblestage of the launch campaign, so as to meet the requirement of launching a payload at TBD daysnotice.

If the countdown is stopped at the end of the launch window on launch day J0, it must be possible toexecute a fresh countdown the following day (J1).

Intervention time on the launcher between two successive countdowns: max. 18 hours (TBC). Accessto the launcher and payload in the ZLV requires the rollback of the gantry.



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5. LIFE PHASES DESCRIPTION

Pre-campaignConfiguration of the SLVTransfer and integration of the 1st stage (P80)Completion and acceptance of the P80

Campaign:Preparation of the inter-stage skirt pyrotechnic systemTransfer of the inter-stage skirt to the ZLV and erectionPreparation of the P23 pyrotechnic systemTransfer and erection of the P23Preparation of the P9 pyrotechnic systemTransfer and erection of P9Transfer and erection of the AVUMComplementary integration – ConfigurationConnections and related checksFunctional fluid and electric checksComprehensive checkIntegration of the upper compositeTransfer and integration of the upper compositeGeneral rehearsalPreparation of the launcher and the ZLV before countdown

Countdown:gantry roll-backConfiguration of the launcherSynchronised sequencingLaunchMonitoring during flight

After launch:Processing of recorded telemetry for flight analysis

Revalidation:Revalidation of grounds systems after launch

Down configuring (only if required):Interruption of countdowngantry rolloutDe-erection.Replacement of equipment



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6. VEGA GROUND SEGMENT MAIN DEFINITIONS

BLA

SLV

ZLV

MobileGantry

table

ELA3

mast

CDL

BIPBEAP

stationsstationsTM stations

EPCU

black = specific to Vega Ground Segmentgrey = involved blue = external

launch pad

UPG

services

Jupiter

BIV = Bâtiment d’Intégration VegaZLV = Zone de Lancement VegaSLV = Site de Lancement VegaCDL = Centre De LancementBLA = Base de Lancement ArianeRadars

Acronyms

BEAP Banc d’Essai des EAP - EAP test facilityBCV Banc de Contrôle Vega - Vega Control BenchBIP Bâtiment d’Intégration Propulseur d’Appoint à Poudre - EAP integration buildingBIV Bâtiment d’Intégration VEGA - Vega integration building (Mobile Gantry)BLA Base de Lancement Ariane - Ariane Launch Base or Space CenterCCS Contrôle Commande Servitude de l’ELA3 - Services Control BenchCCO Contrôle Commande Opérationnel de l’ELA3 - A5 Operational Control BenchCDL Centre de Lancement - Launch CenterELA Ensemble de Lancement Ariane - Ariane Launch SiteEPCU Ensemble de Préparation Charges Utiles - Payload preparation facilitiesSLV Site de Lancement VEGA (Sito di Lancio VEGA) - Vega Launch SiteUPG Usine de Production de propergol de Guyane - Solid propellant factoryZLV Zone de Lancement VEGA - Vega Launch Zone



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7. DESIGN CONSTRAINTS

7.1. Ground Segment cost related design constraints

To reduce recurrent and development costs, existing facilities will be adapted:- the launch zone will be the ELA1 and the control room will be the CDL3,- the Vega Launch Site will use Ariane Launch Base facilities (telecommunications, energy

supply, fluids, gases, water and the access road system, etc.),- Ariane 5 telemetry, ground stations,radars and safety facilities will be reused for VEGA,- the upper composite (S/C, adapter, fairing) will be integrated in the EPCU S3,- existing facilities will be used for launch campaign support purposes (BT, BGQ, COPA,

restaurants, etc.),- small pyrotechnic equipment will be prepared in existing facilities (pyro laboratory ),- launcher batteries will be prepared in existing facilities,- the P23 and P9 stages will be stored in the existing pyrotechnic zone, and other Ariane

storage zones will be reused if necessary.

7.2. Ground Segment technical design constraints

- the P80 will be transferred from the BIP to the SLV by road in the vertical position,- the launcher will be assembled on the bunker in the vertical position,- the launch zone will incorporate a mobile gantry (air-conditioned) with its rail track, a fixed

launch table referred to as the "bunker", an umbilical mast and existing flame chutes adaptedas necessary to meet acoustic requirements,

- the umbilical mast must support and protect the launcher and payload ventilation system,communication links between the launcher and payload and their respective groundcheckout equipment, and the umbilical disconnection system from atmospheric conditionsand launch effects, and must be air-tight and pressurised,

- the P80 stage will be stored in its production zone or in the gantry (this storage function isnot a (Vega) ground segment responsibility).

7.3. Ground Segment general design constraints

Validation of the SLV, including degraded modes, software and procedures, will be carried out onmock-ups of the launcher and simulators, at least for electrical, mechanical and fluids equipment,prior to the first launch campaign.The Ground Segment must take into account the Launch Vehicle growth potential.Vega ground segment development costs must be kept to a minimum by using Ariane 5 systemswhen applicable, or by reusing available studies and models.Constraints induced on Ariane 5 operations will be kept to a minimum during the development andproduction phases.The facilities must withstand climatic conditions encountered in French Guyana, as also launcheffects.Discharges and effluents will be processed in accordance with applicable laws and regulations.



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8. COMPOSITION OF THE GROUND SEGMENT

To take due account of the constraints mentioned above, the VEGA Ground Segment will comprise theVEGA launch site (SLV) is composed of:

- the VEGA launch zone (ZLV), formerly ELA1, incorporating the mobile gantry forintegration and preparation of the VEGA launcher, the bunker including a launch table andumbilical mast, and supporting the gantry,

- the VEGA Launch Center (CDLV), located in CDL3, where is operated a dedicated,independent operational control and monitoring system (BCV), also sharing other ArianeLaunch Site (ELA) components (COPA, BCS, BT, BGQ, etc.).

SLV will interface with the following ELA components:- radio communication facilities with the launcher and payloads,- ELA3 CCS and computer centre,- energy and fluids production facilities,- optics, public address and video facilities.

The VEGA Ground Segment will use the following Ariane Launch Base (BLA) facilities:- EPCUs,- dedicated launcher facilities for the flight phase (telemetry, tracking, flight safety and

optics),- general ground facilities (FO network, STFO, SPHINX, RF, SYNCER, PABX link, etc.),- storage sites (pyro zone, storable propellant zone, HA, stores),- transfer facilities (convoys including UPG trailer, roadways),- data post-flight analysis facilities (TM data processing),- meteorological data,- Jupiter control center,- Storage and preparation zones (P80 front skirt, Z9, Z23, AVUM, fairing),- KEPLER, BESSEL Offices.

EPCU

Stations

Roads & Various networks

Radars

BLA componants

Civil Engineering

Launch Table

Ombilical Mast

Power

Air Conditionning

Fluids

Process interfaces

Safety Systems

Comm & Operation

Electrical systems

Bunker

Mechanics & Structure

Power

Air Conditionning

Fluids

Process interfaces

Safety Systems

Comm & Operation

Mobile Gantry

Power

Air Conditionning

Safety Systems

Comm & Operation

Electrical systems

Launch Center BCV

CCS

Security Systems

VEGA Ground Segment



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9. GENERAL ARCHITECTURE

MobileGantry

ExhaustDuct

OmbilicalsMast

FixLaunchTable

Bunker

Actual Status Project



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ELA1 launch pad when in service for Ariane



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9.1. Ground Segment general design: Mobile gantry

The mobile gantry is in the form of "U" and uses the existing Cosway track of the former ELA1 site.

The gantry will comprise the following zones and premises:

- integration hall: This hall is positioned on the table and provides for integration of the VEGAlauncher on the table. The hall contains all table sub-system connection facilities andtravelling crane with a capacity of 40 T serving the ZLV erection zone, freight hoist with acapacity of 2200 kg, internal stairway, emergency stairway and rapid evacuation chute,

- propellant room: This room is designed to take the UDMH or NTO KART, and a large part ofthe ground equipment required for fuelling the AVUM. It will incorporate a system forcollection of effluent and connected to a mobile tank;

- connection room will serve for connections between the gantry and bunker- various technical rooms will include services like power supply, air conditioning, ...



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Mobile gantry with Launch Vehicle and trailer:

2 mobileplatforms

Trailer

SlidingPalet

Launch vehicle inplace on launchtable



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9.2. Ground Segment general design: Bunker

The bunker is located on the former ELA1 site. It will comprise:- table supporting the launcher (210 T),- mast serving to supply energy and ventilation to the payload,- western flame chute without cover and without deluge: eastern flame chute in option (TBC),- following premises:

� air conditioning room,� power supply rooms for batteries, LV distribution switchboard, HTBT, DC-AC

inverters/converters,� rooms for BCV+CCS+I/F racks, Payload bays,� safety systems room,� communications room,� fluids room,� gantry connection rooms: one in forward position and one in backward position,� withdrawal room of capacity for 40 persons, the room must be capable to keep all the

operators working in the ZLV, with or without the P80 in the gantry).

Bunker in actual status:



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Exhaust Duct before cleaning:



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9.3. Ground Segment general design: BCV

The VEGA ground checkout equipment is autonomous and independent from the A5 CCO.

The Vega data processing center will enable preparation of data needed for operation to beperformed on the BCV, independently of its activities.

The BCV itself will perform:

- first stage Vega launcher acceptance at gantry level i.e. to enable:- nozzle attitude control checking,- inter-stage cable network continuity (TBC),- stage measuring lines operational checking (TBC),- safety state assurance,- data storage for on-line and off-line result processing,- launch campaign organisation, i.e. mainly,- control, operation and monitoring of tested model and ground fluid process,- countdown and final sequence (synchronised sequence),- safety state assurance,- data storage for on-line and off-line result processing.

9.4. Ground Segment general design CDL

The CDL will be integrated in CDL3, and will include the VEGA launch control room located in thebunkerised part of the building.

The existing Services control system. CCS will be modified to integrate dedicated VEGA functions.

The CCS must provide the same functions as defined for Ariane and will use the same technology:

- fire detection and extinction for all premises,- monitoring of Cat. I, II and III energy,- air conditioning,- optics,- toxic vapor detection,- O2 shortage detection,- monitoring of valve positions, etc.



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10. GROUND SEGMENT INTERFACES

External interfaces with VEGA launcher.

- GENERAL INTERFACES� VEGA Launch Vehicle and Vega Launch Pad (geometric) reference axis� Perpendicularly / Planarity /positioning Requirements

- ENVIRONMENT INDUCED BY THE LAUNCHER� Vibration� Acoustic� Thermal environment� External pressure

- NATURAL ENVIRONMENT� Lightening Protection� Wind conditions

- ENVIRONMNENT INDUCED BY THE GROUND� Water flood

- PAYLOAD ENVIRONMENT- MECHANICAL INTERFACES

� Launch Vehicle in Mobile Gantry� Interface Aft Squirt / Ground� PCE access� PDU access� Battery access� EMA� Lateral Solid Rocket Boosters� Crane hook of Mobile Gantry� Fairing shape� Fluid plug propellant loading of AVUM� Launcher displacement at Lift-off� Ducts� Stage Containers� Upper Composite / Ground Segment in EPCU

- ELECTRICAL INTERFACES� LV/GS Electrical interfaces in Mobile Gantry� Upper Composite / Ground Segment interface in EPCU

- RF INTERFACES� Telemetry� Telecommand� Tracking



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- FLUIDS INTERFACES� AVUM liquid stage test, fill and drains� Solid Rocket Motors pressurisation� Launch Vehicle ventilation� Upper-composite ventilation

Internal interfaces with:

- SLV/BLA : Gantry and bunker with:� transfer systems (roads, transporters and trailers),� weak current interfaces (telecommunications, Radio links, optics, etc ... )� STFO, Syrinx, Syncer, intercom, etc ...

- SLV/ELA3 : Gantry and bunker with:� CCS, CDL3,� fluid and energy production facilities: GN2, Ghe, air (utility, instrumentation,

breathable), water (drinking, fire-fighting, industrial, chilled, etc.), oil, power supply:Cat I, II, IIIA and IIIB.

- SLV internal : These requirements principally concern the following interfaces:� gantry / bunker,� BCV / gantry,� BCV / bunker,� BCV / users.



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11. MODIFICATION OF THE EXISTING FACILITIES

Some facilities used in common with Ariane 5 will not be modified as VEGA size is not critical. Thesefacilities concern:

- EPCU (payload preparation complex) for preparation of the upper part,- installations for preparation of the batteries (TBC),- pyrotechnic storage area,- UDMH storage area (rehabilitated for the Storable propellant stage (EPS)),- NTO storage area (created after closure of the ELA2),- low current facilities, transportation.

Installations re-used after the closure of ELA2 may be modified in order to accommodate VEGA.

These installations concern:

- the BESSEL and KEPLER building for VEGA team dedicated offices,- the assembly hall (HA), refitting according to the storage surface area,- the ZES (TBC), refitting for collection of the sewage,- the solid booster (PAP) storage area, fitting out to be examined for preparation of the

stages,- roadway systems, mainly filling of potholes.

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