MISSION OVERVIEW - United Launch AllianceA United Launch Alliance (ULA) Delta II 7420-10 rocket will deliver the Ice, Cloud and land Eleva-tion Satellite-2 (ICESat-2) spacecraft to

A United Launch Alliance (ULA) Delta II 7420-10 rocket will deliver the Ice, Cloud and land Eleva-tion Satellite-2 (ICESat-2) spacecraft to a 250 nmi (463 km), near-circular polar orbit. Liftoff will occur from Space Launch Complex-2 at Vanden-berg Air Force Base, California.

ICESat-2, with its single instrument, the Advanced Topographic Laser Altimeter System (ATLAS), will provide scientists with height measurements to create a global portrait of Earth’s third dimension, gathering data that can precisely track changes of terrain including glaciers, sea ice, forests and more. ATLAS is a

photon-counting laser altimeter that advances technology from the first ICESat mission launched on a Delta II in 2003 and operated until 2009. Our planet’s frozen and icy areas, called the cryosphere, are a key focus of NASA’s Earth science research. ICESat-2 will help scientists investigate why, and how much, our cryosphere is changing in a warming climate, while also measuring heights across Earth’s temperate and tropical regions and take stock of the vege-tation in forests worldwide. The ICESat-2 mission is implemented by NASA’s Goddard Space Flight Center (GSFC). Northrop Grumman built the spacecraft. NASA’s Launch Services Program at Kennedy Space Center is responsible for launch management.

In addition to ICESat-2, this mission includes four CubeSats which will launch from dispens-ers mounted to the Delta II second stage. The CubeSats were designed and built by UCLA, University of Central Florida, and Cal Poly. The miniaturized satellites will conduct research in space weather, changing electric potential and resulting discharge events on spacecraft and damping behavior of tungsten powder in a zero-gravity environment.

Booster

Second Stage

Graphite EpoxyMotors

ICESat-2Spacecraft

InterstageAdapter

Payload Fairing

AJ10-118K Engine

RS-27A Engine

Payload AttachFitting

Centerbody Section

MISSION

DELTA II For nearly 30 years, the reliable Delta II rocket has been an industry workhorse, launching critical capabilities for NASA, the Air Force and customers around the world. From its origin as the launch vehicle for the first Global Positioning System (GPS) satellites to science and interplanetary satellites, including Mars rovers Spirit and Opportunity, to vital commercial communication and imaging satellites, the Delta II rocket has truly earned its place in space history. First Launch: February 14, 1989Launches to date: 154

ulalaunch.comCopyright © 2018 United Launch Alliance, LLC. All Rights Reserved.

With more than a century of combined heritage, United Launch Alliance is the nation’s most expe-rienced and reliable launch service provider. ULA has successfully deliv-ered more than 125 satellites to orbit that provide critical capabilities for troops in the field, aid meteorologists in tracking severe weather, enable personal device-based GPS naviga-tion and unlock the mysteries of our solar system.

MISSION SUCCESS

Image Credit NASA’s Goddard Space Flight Center

Payload Fairing (PLF)The PLF is a composite bisector (two-piece shell) 10-ft diameter fairing. The PLF encapsulates the spacecraft to protect it from the launch environment on ascent. The vehicle’s height with the 10-ft PLF is approximately 132 ft.

Second StageThe Delta II second stage is a hypergolic- (Aerozine 50 and Nitrogen Tetroxide) fueled vehicle with propellant tanks constructed of corrosion-resistant stainless steel. It uses a single AJ10-118K engine producing 9,850 lb of thrust. The second stage’s guidance section provides the structural support for the propellant tanks, the PLF, mountings for vehicle electronics and the structural and electronic interfaces with the spacecraft.

BoosterThe Delta II booster is 8-ft in diameter and approximately 87-ft in length. The booster’s fuel and oxidizer tanks are structurally rigid and constructed of stiffened isogrid aluminum barrels and spun-formed aluminum domes. The booster is completed by the centerbody, which joins the fuel and oxidizer tanks and the LO2 skirt. Propulsion is provided by the RS-27A engine which burns RP-1 (Rocket Propellant-1 or highly purified kerosene) and liquid oxygen, and delivers 200,000 lb thrust at sea level. The booster is controlled by the second-stage avionics system which provides guidance and flight control during flight.

Graphite Epoxy Motors (GEMs)The Delta II 7420-10 launch vehicle uses four GEMs, approximately 40 in. in diameter and 42-ft in length. The GEMs are constructed of a graphite-epoxy composite and are jettisoned by structural thrusters.

LAUNCHVEHICLE

MISSIONOVERVIEW

current as of 1.31.18

12

3

4

DELTA IV HEAVY

1 De Soto, CA RS-68A Engine Fabrication at

Aerojet Rocketdyne 2 Denver, CO ULA Headquarters & Design

Center Engineering3 Decatur, AL Booster, Payload Fairing and

Second Stage Fabrication4 West Palm Beach, FL RL10 Engine Fabrication at Aerojet

Rocketdyne

13

2

4

5

DELTA IV 5,4


Aerojet Rocketdyne 2 Brigham City, UT Solid Rocket Motor Fabrication at

Northrop Grumman Innovation Systems

3 Denver, CO ULA Headquarters & Design

Center Engineering4 Decatur, AL ULA Booster, Payload Fairing and


Rocketdyne

13

2

4

5

DELTA IV 5,2


Aerojet Rocketdyne 2 Brigham City, UT Solid Rocket Motor Fabrication at

Northrop Grumman Innovation Systems


Center Engineering4 Decatur, AL ULA Booster, Payload Fairing and


Rocketdyne

1 2

3

4

57

6

ATLAS V 551

1 Sacramento, CA Solid Rocket Booster Fabrication

at Aerojet Rocketdyne2 Denver, CO ULA Headquarters & Design Center Engineering 3 Harlingen, TX Payload Adapter, Booster Adapter & Centaur Adapter Fabrication4 Decatur, AL Booster Fabrication & Final Assembly, Centaur Tank Fabrication & Final Assembly5 West Palm Beach, FL RL10C-1 Engine Fabrication at Aerojet Rocketdyne6 Khimki, Russia RD-180 Engine Fabrication at

NPO Energomash7 Zurich, Switzerland 5-m Payload Fairing Fabrication at RUAG Space

1 2

3

4

57

6

ATLAS V 541




1 2

3

4

57

6

ATLAS V 531




1 2

3

4

57

6

ATLAS V 521




1 2

3

4

57

6

ATLAS V 511




1

2

3

46

5

ATLAS V 501

1 Denver, CO ULA Headquarters & Design Center Engineering 2 Harlingen, TX Payload Adapter, Booster Adapter & Centaur Adapter Fabrication3 Decatur, AL Booster Fabrication & Final Assembly, Centaur Tank Fabrication & Final Assembly4 West Palm Beach, FL RL10C-1 Engine Fabrication at Aerojet Rocketdyne5 Khimki, Russia RD-180 Engine Fabrication at


ATLAS V 431

1 Sacramento, CA Solid Rocket Booster Fabrica-

tion at Aerojet Rocketdyne2 Denver, CO ULA Headquarters & Design

Center Engineering3 Harlingen, TX Payload Fairing, Payload

Fairing Adapter, Booster Adapter & Centaur Adapter Fabrication

4 Decatur, AL Booster Fabrication & Final

Assembly, Centaur Tank Fabrication & Centaur Final Assembly

5 West Palm Beach, FL RL10C-1 Engine Fabrication

at Aerojet Rocketdyne6 Khimki, Russia RD-180 Engine Fabrication at

NPO Energomash

1 2

35

6

4

ATLAS V 421









NPO Energomash

1 2

35

6

4

ATLAS V 411

1 2

35

4

ATLAS V 411









NPO Energomash

1 2

356

4

ATLAS V 401








NPO Energomash

1

245

3

23

1

54

1 Sacramento, CA RS-27A and AJ10-118K Engine Fabrication at Aerojet Rocketdyne2 Magna, UT Graphite Epoxy Motor Fabrication at Northrop Grumman3 Denver, CO ULA Headquarters & Design Center Engineering4 Iuka, MS Payload Fairing Fabrication at Northrop Grumman5 Decatur, AL Booster, Payload Fairing & Second Stage Fabrication

DELTA IIPRODUCTION

SPACELAUNCHCOMPLEX-2 PROCESSING

FLIGHTPROFILE

FixedLaunchPlatform

Solid RocketBoosters

Centaur

Booster

1

2

3

4

5

PayloadTransporter

1 Remote Launch Control Center (RLCC)

Launch Control Center & Mission Director’s Center

2 Operations Center Receiving & Inspection

3 Building 8337 PLF/Adapter Receiving &

Inspection

4 Spacecraft Processing Facility Spacecraft Processing, Testing

& Encapsulation

5 Mobile Service Tower Launch Vehicle Integration &

Testing, Spacecraft Mate & Integrated Operations

VAFB ATLAS V 421

FairingHalves

BoattailISA

Centaur

ASA

Spacecraft

VAFB ATLAS V 411

FixedLaunchPlatform


Centaur

Booster

1

2

3

4

5

PayloadTransporter





Inspection

4 Spacecraft Processing Facility Spacecraft Processing, Testing &

Encapsulation



FairingHalves

BoattailISA

Centaur

ASA

Spacecraft

VAFB ATLAS V 401

FixedLaunchPlatform

Centaur

Booster1

2

3

4

5

PayloadTransporter





Inspection


& Encapsulation



FairingHalves

BoattailISA

Centaur

ASA

Spacecraft

VAFB ATLAS V 431

FixedLaunchPlatform


Centaur

Booster

1

2

3

4

5

PayloadTransporter





Inspection


Encapsulation



Boattail

FairingHalves

Spacecraft

ISA

Centaur

ASA

VAFB ATLAS V 501

1

2

3

4

5

FixedLaunchPlatform

PayloadTransporter

Centaur

Booster 1 Remote Launch Control Center (RLCC)




Inspection


& Encapsulation



Spacecraft

Fairing Halves,Base Modules, CFLR

Boattail

Centaur

CISA


1

2

3

4

5

FixedLaunchPlatform

PayloadTransporter

Centaur





Inspection


Encapsulation



Spacecraft


Boattail

Centaur

CISA

VAFB ATLAS V 511


1

2

3

4

5

FixedLaunchPlatform

PayloadTransporter

Centaur





Inspection


Encapsulation



Spacecraft


Boattail

Centaur

CISA

VAFB ATLAS V 521


1

2

3

4

5

FixedLaunchPlatform

PayloadTransporter

Centaur





Inspection


Encapsulation



Spacecraft


Boattail

Centaur

CISA

VAFB ATLAS V 531


1

2

3

4

5

FixedLaunchPlatform

PayloadTransporter

Centaur

Booster1 Remote Launch Control Center

(RLCC) Launch Control Center & Mission

Director’s Center



Inspection


Encapsulation



Spacecraft


Boattail

Centaur

CISA

VAFB ATLAS V 541


1

2

3

4

5

FixedLaunchPlatform

PayloadTransporter

Centaur

Booster1 Remote Launch Control Center

(RLCC) Launch Control Center & Mission

Director’s Center



Inspection


Encapsulation



Spacecraft


Boattail

Centaur

CISA

VAFB ATLAS V 551

1

2

3

4

5

Fairing Halves

Payload Adapter Fittings

Spacecraft

SecondStage Booster

PayloadTransporter

Graphite/EpoxyMotors (GEM)

MobileAssembly

Shelter

FixedLaunchPlatform



2 Building 945 Receiving, Inspection, Staging & Final Processing

3 Horizontal Integration Facility Receiving, Inspection & Second

Stage Integration


Encapsulation

5 Mobile Service Tower Launch Vehicle Integration & Testing,

Spacecraft Mate & Integrated Operations

VAFB DIV_5-2

1

2

3

4

5

Fairing Halves

Payload Adapter Fittings

Spacecraft

Second Stage Booster

PayloadTransporter


MobileAssembly

Shelter

FixedLaunchPlatform



2 Building 945 Receiving, Inspection, Staging & Final Processing


Stage Integration


Encapsulation


Testing, Spacecraft Mate &Integrated Operations

VAFB DIV_5-4

1

2

3

4

MobileAssemblyShelter

BoostersSecondStage

Payload AdapterFittings

Spacecraft

PayloadTransporter

FixedLaunchPlatform




Stage Integration


Encapsulation

4 Mobile Service Tower Launch Vehicle Integration & Testing,

Spacecraft Mate & Integrated Operations

VAFB DELTA IV HEAVY

Booster

10-ft PayloadFairing

Graphite EpoxyMotors

SecondStage

PayloadAdapterFitting

InterstageAdapter

2

3

1

5

Fixed UmbilicalTower (FUT)

4

1 Building 1670 Receiving, Inspection, Staging,

Final Processing & Material Stores

2 Building 836 Receiving, Inspection & Booster

Transfer

3 Hazardous Processing Receiving, Inspection, Destruct

Installation & Second Stage Nozzle Installation

4 Spacecraft Processing Spacecraft Processing, Testing &

Encapsulation



DELTA II VAFB, CA

Spacecraft

CAPE ATLAS V 551

4MobileLaunchPlatform

PayloadTransporter

3


1

SpacecraftPayload

Fairing Halves

1 Atlas Spaceflight Operations Center (ASOC)


2 Delta Operations Center ISA, Centaur, Boattail & Vertical

Integration


Encapsulation

4 Vertical Integration Facility Launch Vehicle Integration &


2

BoattailCISA

CFLR

Centaur

Booster

CAPE ATLAS V 541


PayloadTransporter

3


1

SpacecraftPayload

Fairing Halves




Integration


Encapsulation



2

BoattailCISA

CFLR

Centaur

Booster

CAPE ATLAS V 531


PayloadTransporter

3


1

SpacecraftPayload

Fairing Halves




Integration


Encapsulation



2

BoattailCISA

CFLR

Centaur

Booster


PayloadTransporter

3


1

2

SpacecraftPayload

Fairing Halves

CAPE ATLAS V 521




Integration


Encapsulation



BoattailCISA

CFLR

Centaur

Booster


CAPE ATLAS V 511

4

PayloadTransporter

3

1

2

SpacecraftPayload

Fairing Halves

MobileLaunchPlatform




Integration


Encapsulation



BoattailCISA

CFLR

Centaur

Booster

CAPE ATLAS V 501




Integration


Encapsulation



4 MobileLaunchPlatform

PayloadTransporter

3

1

2

SpacecraftPayload

Fairing Halves

BoattailCISA

CFLR

Centaur

Booster

CAPE ATLAS V 431




Integration


Encapsulation



Spacecraft PayloadFairingHalves

3

2

1



BoattailISA

Centaur

Booster

CAPE ATLAS V 421




Integration


Encapsulation




3

2

1



BoattailISA

Centaur

Booster

CAPE ATLAS V 411

Solid RocketBooster

3

2

1

4




Integration


Encapsulation




MobileLaunchPlatform

BoattailISA

Centaur

Booster




Integration


& Encapsulation



CAPE ATLAS V 401

BoattailISA

Centaur

Spacecraft

Booster

PayloadFairingHalves

3

2

1



Integration

2 Receipt Inspection Shop Receiving, Inspection, Staging

& Final Processing

3 Horizontal Integration Facility Receiving, Inspection & Vehicle

Integration


& Encapsulation



PayloadTransporter

LaunchTable

Spacecraft

CAPE DELTA IV M+ (5,4)

1

2

3

5

4

SecondStage

Booster

FairingHalves

PayloadAdapterFittings



Integration

2 Receipt Inspection Shop Receiving, Inspection, Staging

& Final Processing

3 Horizontal Integration Facility Receiving, Inspection & Vehicle

Integration


& Encapsulation



PayloadTransporter

LaunchTable

Spacecraft

CAPE DELTA IV M+ (5,2)

1

2

3

5

4

Booster

FairingHalves



SecondStage

1 Delta Operations Center Mission Director’s Center &

Second Stage Processing 2 Horizontal Integration Facility Receiving, Inspection & Vehicle

Integration


& Encapsulation



Booster(s)

1

CAPE DELTA IV HEAVY

2

3

4

PayloadTransporter

Spacecraft

FairingHalves


SecondStage

1

2

3

4

5

6

7

89

10 11 1213

15

14

Longitude (deg)

Geo

detic

Lat

itude

(deg

)

80

60

40

20

0

-20

-80

-60

-40

-135 -90 -45 0 1359045

Launch Vehicle /Spacecraft GroundtrackTDRS Asset Geostationary Orbital Position

TEL-4

BOSS

456

7

9

10

8

11

12

1314

15

TDRS E TDRS ZTDRS W

All Values Approximate

Time(hr:min:sec)Event

1 Engine Ignition -00:00:02.7Liftoff (Thrust to Weight > 1) 00:00:00.0Mach 1 00:00:30.7Maximum Dynamic Pressure 00:00:46.0 Four GEM Jettison 00:01:22.5 Main Engine Cutoff (MECO) 00:04:24.7 First Stage Separation 00:04:33.5 Second Stage Ignition 00:04:39.0 Payload Fairing Jettison 00:05:01.5 First Cutoff—Second Stage (SECO-1) 00:10:57.4First Restart—Second Stage 00:47:36.5 Second Cutoff—Second Stage (SECO-2) 00:47:42.3ICESat-2 Separation 00:52:43.5Second Restart—Second Stage 01:10:53.5 Third Cutoff—Second Stage (SECO-3) 01:11:01.6Begin CubeSat Deployment 01:16:02.0 Third Restart— Second Stage 01:50:04.0 Fourth Cutoff—Second Stage (SECO-4) 01:50:41.5 Impact 02:10:46.9

23

456789

101112131415

ICESat-2 Orbit at Separation Semi-major Axis: 3,696.38 nmi | Eccentricity: 0.001 degInclination: 92.0 deg | Argument of Perigee: 108.95 deg

Documents

MISSION OVERVIEW - United Launch AllianceA United Launch Alliance (ULA) Delta II 7420-10 rocket will deliver the Ice, Cloud and land Eleva-tion Satellite-2 (ICESat-2) spacecraft to