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Delta II Icesat-2 Mission Booklet

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A United Launch Alliance (ULA) Delta II 7420-10 photon-counting laser altimeter that advances MISSION rocket will deliver the Ice, Cloud and land Eleva- technology from the first ICESat mission tion Satellite-2 (ICESat-2) spacecraft to a 250 nmi launched on a Delta II in 2003 and operated until (463 km), near-circular polar orbit. Liftoff will 2009. Our planet’s frozen and icy areas, called occur from Space Launch Complex-2 at Vanden- the cryosphere, are a key focus of NASA’s Earth berg Air Force Base, California. science research. ICESat-2 will help scientists MISSION investigate why, and how much, our cryosphere ICESat-2, with its single instrument, the is changing in a warming climate, while also Advanced Topographic Laser Altimeter System measuring heights across Earth’s temperate OVERVIEW (ATLAS), will provide scientists with height and tropical regions and take stock of the vege- measurements to create a global portrait of tation in forests worldwide. The ICESat-2 mission Earth’s third dimension, gathering data that can is implemented by NASA’s Goddard Space Flight precisely track changes of terrain including Center (GSFC). Northrop Grumman built the glaciers, sea ice, forests and more. ATLAS is a 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 DELTA II For nearly 30 years, the reliable in space weather, changing electric potential Delta II rocket has been an industry and resulting discharge events on spacecraft workhorse, launching critical and damping behavior of tungsten powder in a capabilities for NASA, the Air Force Image Credit NASA’s Goddard Space Flight Center zero-gravity environment. and customers around the world. From its origin as the launch vehicle for the first Global Positioning System ICESat-2 LAUNCH Payload Fairing (PLF) (GPS) satellites to science and The PLF is a composite bisector (two-piece shell) Spacecraft VEHICLE 10-ft diameter fairing. The PLF encapsulates interplanetary satellites, including the spacecraft to protect it from the launch Mars rovers Spirit and Opportunity, to environment on ascent. The vehicle’s height with vital commercial communication and the 10-ft PLF is approximately 132 ft. imaging satellites, the Delta II rocket has truly earned its place in space Second Stage history. The Delta II second stage is a hypergolic- (Aerozine 50 and Nitrogen Tetroxide) fueled First Launch: February 14, 1989 vehicle with propellant tanks constructed of Launches to date: 154 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 Payload Attach tanks, the PLF, mountings for vehicle electronics Payload Fairing Fitting and the structural and electronic interfaces with the spacecraft. Second Stage Booster The Delta II booster is 8-ft in diameter and approximately 87-ft in length. The booster’s AJ10-118K MISSION With more than a century of fuel and oxidizer tanks are structurally rigid Engine combined heritage, United Launch and constructed of stiffened isogrid aluminum SUCCESS Alliance is the nation’s most expe- barrels and spun-formed aluminum domes. Interstage rienced and reliable launch service The booster is completed by the centerbody, Adapter provider. ULA has successfully deliv- which joins the fuel and oxidizer tanks and the ered more than 125 satellites to orbit LO2 skirt. Propulsion is provided by the RS-27A Booster that provide critical capabilities for engine which burns RP-1 (Rocket Propellant-1 Centerbody troops in the field, aid meteorologists or highly purified kerosene) and liquid oxygen, Section and delivers 200,000 lb thrust at sea level. in tracking severe weather, enable The booster is controlled by the second-stage personal device-based GPS naviga- avionics system which provides guidance and tion and unlock the mysteries of our flight control during flight. solar system. 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 graphite-epoxy composite and are jettisoned by Motors RS-27A Engine structural thrusters. ulalaunch.com Copyright © 2018 United Launch Alliance, LLC. All Rights Reserved. CAPE DELTA IV M+ (5,2) CAPE DELTA IV M+ (5,4) CAPE DELTA IV HEAVY 1 Second 1 Second Graphite/Epoxy Stage Graphite/Epoxy Stage Second Motors (GEM) Motors (GEM) 1 Stage Booster Booster Booster(s) 2 Fairing 1 Delta Operations Center 2 Fairing 1 Delta Operations Center Halves ISA, Centaur, Boattail & Vertical Halves ISA, Centaur, Boattail & Vertical Fairing Integration Integration Halves 2 Receipt Inspection Shop 2 Receipt Inspection Shop Receiving, Inspection, Staging Receiving, Inspection, Staging 1 Delta Operations Center Payload & Final Processing Payload & Final Processing Payload Adapter Mission Director’s Center & 3 Adapter 3 Adapter Second Stage Processing Fittings 3 Horizontal Integration Facility Fittings 3 Horizontal Integration Facility Fittings 5 Receiving, Inspection & Vehicle 5 Receiving, Inspection & Vehicle 2 2 Horizontal Integration Facility Integration Integration 4 Receiving, Inspection & Vehicle Integration 4 Spacecraft Processing Facility 4 Spacecraft Processing Facility DELTA II 4 Spacecraft Processing, Testing ATLAS V 401 4 Spacecraft Processing, Testing ATLAS V 411 3 3 Spacecraft ProcessingATLAS Facility V 421 ATLAS V 431 PRODUCTION & Encapsulation FLIGHT & Encapsulation Spacecraft Processing, Testing Spacecraft Spacecraft & Encapsulation 5 Mobile Service Tower PROFILE 5 Mobile Service Tower Launch Launch Vehicle Integration & Launch 11 Launch Vehicle Integration & 4 Mobile Service Tower Table Testing, Spacecraft Mate & Table 10 12 Testing, Spacecraft Mate & 1 Sacramento, CA Launch Vehicle Integration & 1 Sacramento, CA 1 Sacramento, CA Integrated Operations Integrated Operations Spacecraft 9 Solid Rocket BoosterTesting, Fabrica Spacecraft- Mate & Solid Rocket Booster Fabrica- Solid Rocket Booster Fabrica- Payload Payload 13 Payload tion at Aerojet RocketdyneIntegrated Operations tion at Aerojet Rocketdyne tion at Aerojet Rocketdyne Transporter Transporter Transporter 8 1 Denver,14 CO 2 Denver, CO 2 Denver, CO 2 Denver, CO ULA Headquarters & Design ULA Headquarters & Design ULA Headquarters & Design ULA Headquarters & Design 1 Sacramento, CA Center Engineering Center Engineering Center Engineering Center Engineering RS27A and AJ10118K Engine Time 2 Harlingen, TX 3 Harlingen, TX 3 Harlingen, TX 3 Harlingen, TX Fabrication at Aerojet Rocketdyne 7 Event (hr:min:sec) Payload Fairing, Payload Payload Fairing, Payload Payload Fairing, Payload Payload Fairing, Payload 1 2 2 Magna, UT 1 Engine Ignition -00:00:02.7 Fairing Adapter, Booster 1 Fairing Adapter, Booster 1 Fairing Adapter, Booster 1 Fairing Adapter, Booster 3 Graphite Epoxy Motor Fabrication 1 2 2 2 Liftoff (Thrust to Weight > 1) 00:00:00.0 Adapter & Centaur Adapter Adapter & Centaur Adapter Adapter & Centaur Adapter Adapter & Centaur Adapter at Northrop Grumman 15 Fabrication Fabrication Fabrication Fabrication 3 Denver, CO Mach 1 00:00:30.7 6 3 Decatur, AL 4 Decatur, AL 4 Decatur, AL 4 Decatur, AL ULA Headquarters & Maximum Dynamic Pressure 00:00:46.0 4 3 Booster Fabrication & Final 4 Booster Fabrication & Final 4 Booster Fabrication & Final 4 Booster Fabrication & Final 5 Design Center Engineering 2 Four GEM Jettison 00:01:22.5 Assembly, Centaur Tank Assembly, Centaur Tank Assembly, Centaur Tank Assembly, Centaur Tank 4 Iuka, MS 3 Main Engine Cutoff (MECO) 00:04:24.7 Fabrication & Centaur Final Fabrication & Centaur Final Fabrication & Centaur Final Fabrication & Centaur Final Payload Fairing Fabrication at Assembly Assembly Assembly Assembly Northrop Grumman 5 First Stage Separation 00:04:33.5 4 4 West Palm Beach, FL 5 5 West Palm Beach, FL 5 5 West Palm Beach, FL 5 5 West Palm Beach, FL 5 Decatur, AL 4 Second Stage Ignition 00:04:39.0 6 5 RL10C1 Engine Fabrication RL10C1 Engine Fabrication 6 RL10C1 Engine Fabrication 6 RL10C1 Engine Fabrication Booster, Payload Fairing & 2 3 3 3 5 Payload Fairing Jettison 00:05:01.5 at Aerojet Rocketdyne at Aerojet Rocketdyne at Aerojet Rocketdyne at Aerojet Rocketdyne Second Stage Fabrication 6 First Cutoff—Second Stage (SECO-1) 00:10:57.4 5 Khimki, Russia 6 Khimki, Russia 6 Khimki, Russia 6 Khimki, Russia 7 First Restart—Second Stage 00:47:36.5 RD180 Engine Fabrication at RD180 Engine Fabrication at RD180 Engine Fabrication at RD180 Engine Fabrication at NPO Energomash NPO Energomash NPO Energomash NPO Energomash 4 8 Second Cutoff—Second Stage (SECO-2) 00:47:42.3 DELTASPACE II VAFB, CA CAPE9 ATLASICESat-2 Separation V 401 00:52:43.5 CAPE ATLAS V 411 CAPE ATLAS V 421 CAPE ATLAS V 431 LAUNCH 10 Second Restart—Second Stage 01:10:53.5 ATLAS V 501 ATLAS V 51111 Third Cutoff—Second Stage (SECO-3) 01:11:01.6 ATLAS V 521 ATLAS V 531 ATLAS V 541 COMPLEX-2 12 Begin CubeSat Deployment 01:16:02.0 PROCESSING 10-ft Payload Fairing Interstage 13 Third Restart— Second Stage 01:50:04.0 Solid Rocket 1 Solid Rocket 1 Solid Rocket 1 Adapter 1 1 Sacramento, CA 1 Sacramento, CA 1 Sacramento, CA 1 Sacramento, CA 14 Fourth Cutoff—Second Stage (SECO-4)Booster 01:50:41.5 Booster Booster Boosters Booster Boosters
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