ASTRO AEROSPACE

Astro Aerospace

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Since 1958 Astro Aerospace has helped enable complex missions to Earth orbit, Mars, and beyond with innovative deployable structures and mechanisms

– AstroMesh® Mesh Antenna Reflector – Storable Tubular Extendable Member (STEM™) – Telescopic Booms – Hinges and Mechanisms

Hundreds of flights – Zero Failures – Voyager – Mars Pathfinder – ISS Mobile Transporter – Inmarsat 4 – Alphasat – 2014 Launch Pending: Soil Moisture Active Passive

(SMAP)

Click Here for Overview Video

Cleared for public release; NGAS Case 14-1846 dated 9/10/14

AstroMesh™ Reflectors

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http://www.northropgrumman.com/BusinessVentures/AstroAerospace/Products/Pages/AstroMesh.aspx

Cleared for public release; NGAS Case 14-1846 dated 9/10/14

ASTRO AEROSPACE

• Proven: 8 AstroMesh™ reflectors successfully deployed on-orbit

• Inherently Reliable Robust Deployment Kinematics

• Accurate Surface Repeatability

• Efficient Drum-Like Structure

• High Deployed Stiffness

• Exceptionally Low mass

• High Thermal Stability

• Easily Scales

• ESD Compatible Design & PIM Free

• High structural stiffness & RF test in 1g environment at all frequencies

AstroMesh Advantage

Most Reliable Reflector Technology Available 3

Cleared for public release; NGAS Case 14-1846 dated 9/10/14

ASTRO AEROSPACE

THURAYA/GEM 12-m AstroMesh L-Band

Deployed D1 - 11/2000 D2 - 7/2003 D3 -1/2008

Proven On-Orbit Performance

• AstroMesh has been steadily developed as a product since 1990 • 8 units deployed on-orbit and are performing flawlessly

• 2 additional deployments scheduled for 2014 • 100% On-Orbit Success – No Failures – No Anomalies

AstroMesh Reflector Flight Heritage

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MBSat 12-m AM-1 S-Band

Deployed 3/2004

INMARSAT 4 9-m AM-1 L-Band Deployed FM1 - 3/2005 FM2 - 11/2005 FM3 - 8/2008

Alphasat 11-m AM-1 L-Band

Deployed 8/2013

Classified

Deployed Pending

Cleared for public release; NGAS Case 14-1846 dated 9/10/14

ASTRO AEROSPACE

Evolution of AstroMesh Family

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AM-2 18 to 50-Meter

Class

Thuraya

AM 12-Meter

INMARSAT, MBSat & Alphasat

AM-1 6 to 25-Meter Class

AM-Lite 3 to 8-Meter

Class

Reduce Stowed Diameter by 40%

Reduce Reflector Mass by 50%

• AstroMesh hardware designs for a broad spectrum of applications

– Aperture sizes from 3 to greater than 50-meter – Frequency range UHF to beyond Ka-Band

Reduce Stowed Height by 40%

SMAP

Cleared for public release; NGAS Case 14-1846 dated 9/10/14

ASTRO AEROSPACE

Comparison of Stowed Packages (12-Meter Aperture)

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3.81

AM

THURAYA

AM-1 AM-2

Starshade

2.49

3.86

The first flight design

Tighter stowed package to enable mounting on

Spacecraft sidewall

Redesigned truss articulation reduces

stowed height

INMARSAT, MBSat & Alphasat

Cleared for public release; NGAS Case 14-1846 dated 9/10/14

ASTRO AEROSPACE

AM-1 configuration

• Reduced Diameter versus 1st Generation AM – Stowed Diameter 60% of AM – Stows on Spacecraft Sidewall

• Scalable From 6 to 25-meter Aperture • Extensive Flight Heritage

– 9-m Aperture Inmarsat 4 – 12-m Aperture MBSat – 11-m Aperture Alphasat

AM 12-Meter

AM-1 6 to 25-Meter

Class

Reduce Stowed Diameter by 40%

Thuraya Inmarsat & MBSat

MBSat Inmarsat 4 Alphasat 7

Cleared for public release; NGAS Case 14-1846 dated 9/10/14

ASTRO AEROSPACE

AM-1 & AM-Lite Deployment Sequence

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Stowed Release & Bloom Motorized Deployment

Fully Deployed & Latched

Cleared for public release; NGAS Case 14-1846 dated 9/10/14

ASTRO AEROSPACE

AM-2 Configuration

AM-2 18 to 50-

Meter Class

AM-1 6 to 25-Meter

Class

Reduce Stowed Height by 40%

• AM-2 Stows into Batten Length • AM-1 Stows in Batten Plus Longeron Lengths

• AM-2 Deployed Truss Configuration Identical to AM-1

NASA Star Occulter Development Model

9 Cleared for public release; NGAS Case 14-1846 dated 9/10/14

ASTRO AEROSPACE

AM-2 Deployment Sequence

Stowed Release & Bloom Motorized Deployment

Fully Deployed & Latched 10

Cleared for public release; NGAS Case 14-1846 dated 9/10/14

Deployable Masts & Booms • STEM (Storable Tubular Extendible Members)

• Telescopic Tube Mast

• Hinge Products

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http://www.northropgrumman.com/BusinessVentures/AstroAerospace/Products/Pages/STEM.aspx

http://www.northropgrumman.com/BusinessVentures/AstroAerospace/Products/Pages/TelescopicTubeMasts.aspx

http://www.northropgrumman.com/BusinessVentures/AstroAerospace/Products/Pages/HingesDeployBooms.aspx

Cleared for public release; NGAS Case 14-1846 dated 9/10/14

ASTRO AEROSPACE

STEM™ (Storable Tubular Extendible Member)

STEM

BI-STEM

Interlocking BI-STEM

Benefits Very small stowed package Retractable

SELENE Lunar Sounder Antennas Hubble Solar Array Deployer

JWST Mid-Boom Deployment Actuator

Applications Linear actuators Antennas Deployment drives

Quad-STEM Deployment Actuator

12 Cleared for public release; NGAS Case 14-1846 dated 9/10/14

ASTRO AEROSPACE

JIB Technology – Stored Energy Deployment

• Self Deploying Monopole • Non-Pyrotechnic Release Mechanization • Any Length Up 25 Feet • 1/2 to 1 3/8 Inch Diameters • Significant Flight Heritage (Over 25

Different Missions, 1000s of Deployments)

Link toHigh Speed Video

Stowed 2 in Length

Deployed 9 ft Length

Link to Full Speed Video

13 Cleared for public release; NGAS Case 14-1846 dated 9/10/14

ASTRO AEROSPACE

Mars Pathfinder Rover Ramps

Low Mass: 1.0 kg (2.2 lb) Small Stowed Package: 7.6 cm (3.0 in) diameter 42 cm (16.5 in) long Self-Deployed Stable Structure: Supports 12.5 kg (27.6 lb) Rover Provides 136 cm (53.5 in) long ramp

Customer: JPL 14

Cleared for public release; NGAS Case 14-1846 dated 9/10/14

ASTRO AEROSPACE

Telescopic Tube Mast

Lightweight Mast Technology Enables Large Deployables

• Benefits – Modular – Robust design – Can be made from

many materials

JWST Sunshield Boom Development Unit

• Applications – Antenna support

structures – Solar array support

structure – Instrument deployment

boom – Experiment package

support – Nuclear reactor

separation boom – Deployable radiator

boom

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Link to deployment video

Cleared for public release; NGAS Case 14-1846 dated 9/10/14

ASTRO AEROSPACE

Prototype – Telescopic Tube Mast

• Deployed Length: 110 feet • Stowed Length: 8 feet • Mass: 175 lb • Deployment System: 120-lb-output force STEM

drive • Operation: Deployment and Retraction • 12 Locking pins per tube interface • Light weight thin wall composite tubes

Link to Deployment Video

16 Cleared for public release; NGAS Case 14-1846 dated 9/10/14

ASTRO AEROSPACE

Telescopic Tube Mast

Boom - Flight Qualified & Safe Man-Rated for the

Space Shuttle Application

Small Compact & Pinless Lightweight Telescopic Tube

Mini- Telescopic Boom • Mini STEM Drive – 15 lbf • Telescopic boom approx 1” dia.

17 Cleared for public release; NGAS Case 14-1846 dated 9/10/14

ASTRO AEROSPACE

Hinging Mechanisms

• CALM Hinge – Designed for high

stiffness boom deployment

– Low Shock – Retractable

• Hinge Line Deployment – Designed for deployment of

stacked rigid panels – High stiffness joints for high

accuracy arrays – Compact design resides within panel

thickness

• Spring Hinges – Based on Proven

STEM Technology Light flat profile

Many Motorized, Cable Driven, Spring/damper Hinges

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Link to Video Link to Video

Link to Video

Cleared for public release; NGAS Case 14-1846 dated 9/10/14

Extendable Support Structure (ESS)

• AstroFold • Custom Designs

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http://www.northropgrumman.com/BusinessVentures/AstroAerospace/Products/Pages/ExtendibleSupportStructure.aspx

Cleared for public release; NGAS Case 14-1846 dated 9/10/14

ASTRO AEROSPACE

AstroFold – Extendable Support Structure (ESS)

ISAT Proposed SAR Structure

Sequence of Events – Release of launch tie-downs allows

small first motion of truss due to stowed strain energy

– Extension and latch-out of telescoping diagonals

– Secondary restraint is released – Cable spoolers deploy truss in

controlled and synchronized manner – Slack diagonal cords are managed

with devices developed for AstroMesh

– Longeron tensioning cables preload structure to complete deployment

– Truss can be bowed as required by differential longeron tensions

Link to Deployment Video

20 Cleared for public release; NGAS Case 14-1846 dated 9/10/14