atv-2 operations - briefing for the media 9-feb-2011

EAC, 09 Feb 2011 Kris Capelle Slide Nr 1

ATV-2 Operations

“Up to the ISS and Back”

Kris Capelle ATV-2 Lead Mission Director


ATV-1: Jules VerneATV-3: Edoardo Amaldi

ATV-2: Johannes Kepler

Launch: 15 Feb 22:13zDocking: 23 Feb 15:25z (+/- 30 min)

Undocking: 04 Jun (depending on ISS/Shuttle Planning)


1. ATV Mission2. ATV Spacecraft3. Mission Phases4. ISS - ATV5. Training


1. ATV MISSION1. ATV MISSION


ATV MissionATV Mission

The Automated Transfer Vehicle (ATV) is a pressurized module, which

provides contribution to the logistic servicing of the International

Space Station (ISS) through:

- re-boost and support to attitude control for the ISS

- delivery of items (dry pressurized cargo, water, gases and propellant)

- disposal of ISS wastes, solid and liquid.


2. ATV SPACECRAFT2. ATV SPACECRAFT


• Automated Transfer Vehicle 2 major parts:– “Spacecraft”

• Data handling, • Thermal Control, • Power generation , 4.8KW• Propulsion, 4 x 490N (Main Propulsion)

28 x 220N (Attitude Control)• Sensors (gyro, accelerometers, Star tracker, VDM

(videometer) , TGM (telegoniometer) • GPS• Communications (TDRS, ARTEMIS and Russian Ground

Stations)– “Payload”

• Integrated Cargo Carrier • (pressurised module, with cargo racks)• Tanks for Gas, Water and Propellant Delivery• Docking System

•

ATV SpacecraftATV Spacecraft


ATV / Soyuz Comparative


Vehicle overall layoutVehicle overall layout

Spacecraft(SC)

IntegratedCargo Carrier(ICC)

Equipped Propulsion Bay (EPB)ATV Fuel Tanks (Attitude Control & Reboost)

Equipped Avionics Bay (EAB)Electronics Boxes

Equipped PressurisedModule (EPM)Pressurized Cargo &

Crew Interfaces (gas & water)

Russian Docking System (RDS)Docking Interface



HTV



+ Xatv

+ Yatv

+ Zatv

+ Yatv

Diameter: 4.4 mWing span: 22mHeight: 10 m


External equipmentExternal equipment


Spacecraft (Propulsion Bay)Spacecraft (Propulsion Bay)

Main Thruster(4) 490N thrusters

Propellant Tank(4) Mono Methyl Hydrazine (MMH) [fuel]

(4) Mono Oxide Nitrogen (MON) [oxydizer]

Pressurant Tank(2) Helium

Attitude Control Thrusters(28) 220N thrusters


Main CharacteristicsMain Characteristics

– Mass at launch up to 20750 kg– Dry mass of 11 tons– up to 9.5 tons gross cargo capability– up to 7 tons of propellants at launch– 10.3 meter long – 22.3 meter span solar arrays deployed– 4.5 meter diameter– 22 m3 pressurised module (16 available to cargo accommodation)– 4 solar arrays, sun tracking, providing 4.8 kW altogether– Propulsion:

4x 490N (Main Propulsion)28 x 220N (Attitude control)


3. Mission Phases3. Mission Phases

3.1 Overview 3.1 Overview 3.2 Launch and Early Operations Phase (LEOP)3.2 Launch and Early Operations Phase (LEOP)3.3 Rendezvous and Docking3.3 Rendezvous and Docking3.4 Attached Phase3.4 Attached Phase3.5 Undocking and Re-entry3.5 Undocking and Re-entry


OverviewOverview


Launch and Early Operations Phase (1)Launch and Early Operations Phase (1)

Launched by Ariane 5 ES from Kourou (French Guiana)(15 Feb 22:13)

Boosters separation

Fairing separation Main stageseparation

First EPS boost

Second EPS boost

Injection / Separation(15 Feb 23:17)


Launch and Early Operations Phase (2)Launch and Early Operations Phase (2)

Launched by Ariane 5 ES from Kourou (French Guiana)(Mar 09 04:03)

Boosters separation


First EPS boost

Second EPS boost

Injection(Mar 09 05:09)Main activities after SeparationMain activities after Separation

• Solar Array DeploymentSolar Array Deployment• Antenna Boom deploymentAntenna Boom deployment• GPS InitialisationGPS Initialisation• Spacecraft Health checkSpacecraft Health check• Transfer to Phasing Orbit (reboost)Transfer to Phasing Orbit (reboost)


Rendezvous and Docking (1/8)

Way PointsHold Points

- 3.5 km

-19 m-11 m

-249 m

S-3

S-1S-2

S4S3

S1S0 V-bar

R-bar

S-4 RENDEZVOUS

&

DOCKING

- 30 km

- 170 km- 105 km

Transfer to Phasing

Orbit

Drift on Phasing Orbit

Transfer to ISS Vicinity

S2

- 15.5 km

S41

S-1/2

Transfer to

Rendezvous

- 39 km

~ 240 min

звез

дазв

езда


Details

STATION

KEEPING

S4

19 m

LVLH

Docking Port Axis

S4V-bar

звез

да

19 m19 m

LVLH

Docking Port AxisDocking Port Axis

S4V-bar

звез

дазв

езда

19 m

S5LVLH

Docking Port Axis

S4

звез

да

V-bar

19 m19 m

S5LVLH

Docking Port Axis

S4

звез

да

V-bar

S4 (EP)=

ATV at S4 in EP Attitude BEFORE transition to DUP Attitude

S4 (DUP)=

ATV at S4 in DUP Attitude

S4SKGNC ModeFA_1_2GNC Mode



• Mechanical Contact• Post Contact force• SM Capture (ATV latches)• ISS Free Drift (110’)• AutoCAM Disabled• Docking Sequence start• Probe retraction• Interface aligned• ATV Hooks Closure• Probe Extension, Latch retraction, Final retraction• SM Hooks Closed• Bus merging• Contingencies: (Latch opening, Pyro)



Rendezvous and Docking (1/8)Rendezvous and Docking (1/8)


Attached Phase (1/4)Attached Phase (1/4)

Launched by Ariane 5 ES from Kourou (French Guiana)(Mar 09 04:03)

Boosters separation


First EPS boost

Second EPS boost

Main activities during attached PhaseMain activities during attached Phase

• Gargo DeliveryGargo Delivery• RefuellingRefuelling• Gas TransferGas Transfer• Liquid TransferLiquid Transfer• ISS ReboostISS Reboost• Debris Avoidance ManoeuvresDebris Avoidance Manoeuvres


Attached Phase (2/4)Hatch opening


Inside ICC

Cargo Rack

Attached Phase (3/4)Attached Phase (3/4)


Attached Phase (4/4)Attached Phase (4/4)ReboostReboost


ATV as ISS module ATV as ISS module (seen from Soyuz 18S-2 on April, 10)(seen from Soyuz 18S-2 on April, 10)


ATV as ISS module (seen from Shuttle 02 Jun 2008)


ATV as ISS module (seen from Shuttle 11 Jun 2008)


Undocking and Re-entry (1/4)

Main activitiesMain activities

• Cargo Preparation Cargo Preparation • Hatch Closure Hatch Closure • Hooks Opening and Separation (springs)Hooks Opening and Separation (springs)• Departure boostDeparture boost • De-orbitation boost 1+2De-orbitation boost 1+2• Splash DownSplash Down


4. ISS operations4. ISS operations


Current ISS configuration


• Feb 16 - Russian EVA #28• Feb 18 - HTV Relocation to Node 2 Zenith• Feb 23 - ATV Docking• Feb 26 to March 5 – ULF-5

– Permanent Multi-purpose Module (PMM) installation on Node 1 Nadir

• Feb 28 – Vozdukh R&R (Russian CO2 removal system)• Mar 7 – HTV Relocation to Node 2 Nadir• Mar 16 – Soyuz 24S Undocking• Apr 1 – Soyuz 26S Docking

Upcoming ISS operations


HTV RELOCATION


5. Training5. Training


ISS Mission Control Center - Houston

ATV Control Center

Toulouse

ISS Mission Control Center - Moscow

ISS

ATV

TDRSS ISS DataArtemis

TDRSS

Telemetry& Telecommands

Operational CoordinationATV and ISS data

GPS

Localization

ATV COMMUNICATION LINKS


Coordination!!!

Ground Control Centre Authorities

MISSION PRIME AUTHORITY MISSION AUTHORITY

Cargo Transfer

• Supervises the process of Integrated ATV/ISS Operations• handles Integrated ATV/ISS Ops

• GO / NO GO authorization for the next mission step• handles Integrated ISS/ATV Ops

RVD / Departure

Refuelling

Reboost

Attitude Control

Water & Gas Transfer

MCC - H

Houston

MCC - M

Moscow

ATV - CC

Toulouse

Control & Monitor ATV Before every GO Command checks readiness of ATV Control & Monitor execution of ATV automated sequences (onboard mission plan, OMP)

MISSION EXECUTION CONTROLLAUNCH

AUTHORITY Pre-launch

Launch

Kourou

EXECUTIONof automated sequences (OMP)


ATV Mission & Operations Overview ATV-COR-EAC-MOO

Directorate of Human Spaceflight, Microgravity and Exploration Programmes Feb 07

Operations Management & Authority Principles- Example RVD

MCC - M

Moscow

ATV - CC

Toulouse

S4 S41S3

3

Report Readiness

Report

Readiness

GODecision

Report Readiness

GO Command

19 m 11 m249 m

????

??

MCC - H

Houston

TDRSSS-Band

ReportGO sent

ReportGO sent


ENDEND

Thank you for your attention!Thank you for your attention!

atv-2 operations - briefing for the media 9-feb-2011

Technology

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atv mission1

atv spacecraft2

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