Training Example: Astra – Review the Data, Give Your Score & Compare to the Real AI Evaluation

[H2] Rocket 4.0
Astra's Rocket 4.0 is engineered for the demands of the modern space economy. Built on a foundation of rapid iteration and proven performance to deliver consistent, reliable access to orbit.
[H3] 1 TONNE
Target Payload CapacityTo mid-inclination low Earth orbit over the course of the product's lifecycle
[H3] Weekly
Target Launch CadenceTarget launch cadence subject to spaceport availability
[H3] 29°-110°
Orbital Inclinations ServedAccess to a wide range of orbital inclinations
[H3] GLOBAL
Mobile & Responsive LaunchBrowse spaceport locations and plansLaunch Services OverviewView Launch History
[H2] Electric Propulsion for Constellations
Backed by flight heritage and currently on orbit, Astra's satellite engines are engineered for efficiency, reliability, and precision to maneuver, maintain orbit, and execute mission operations.
[H3] Engine Capabilities
Proven reliability with thousands of hours of on-orbit operationCompatible with xenon and krypton propellantsHeaterless, center-mounted, instant-start cathodeNovel magnetic lensing and magnetic circuitAdvanced high temperature materials
Click and drag to rotate + Scroll to zoomSatellite Engine OverviewInstructionsTo make this component work with other components you must:Add a background color to the section div above ↑ this Timeline section. This is will help hide the progress line overflow.Add z-index-2 class to the section div above ↑ this Timeline section. This will ensure the oveflowing progress line from the Timeline section below ↓ is hidden underneath it.
[H3] Fastest to orbit — fueled by iteration
From a garage startup to reaching orbit faster than any private company in history, Astra's journey is defined by relentless innovation and rapid learning. View our launch timeline below, or explore our full history.
[H6] 2016 October
[H4] Astra is founded by Chris Kemp and Dr. Adam London
In a San Francisco garage, Chris Kemp and Dr. Adam London began designing Rocket 1.0, Astra's first launch vehicle, along with it's mobile ground support system.
[H6] 2017 March
[H4] Opened Orion Test Facility in Alameda, California
At the former Alameda Naval Air Station, Astra transforms a retired jet engine test cell into a rocket engine development site — marking the start of the first rocket construction and Astra's first electric pump-fed engine tests.
[H6] 2018 July
[H4] Test launch, Version 1.0, LV0001
Astra's first test launch was on July 20, 2018 in Kodiak, Alaska, less than two years after being founded. The primary goal was to collect initial flight data — successfully achieved with nearly 25 seconds of flight.
[IMG: Rocket launching from a ground platform with smoke and flames beneath it and industrial buildings in the background.]
[H6] 2018 November
[H4] Test launch, Version 2.0, LV0002
Astra validated major upgrades to the rocket and ground system in this test. During the flight, two engine pump controllers malfunctioned, leading to the flight's termination about 30 seconds after liftoff.
[IMG: Bright rocket launch at night with smoke billowing near the launch pad.]
[H6] 2020 September
[H4] Test launch, Version 3.1, LV0004
Astra returned to the launch pad on September 11, 2020 with LV0004 (Rocket 3.1) and an upgraded launcher. After lift-off, two software errors caused the rocket to veer off-course, triggering the flight safety system to terminate the flight.
[IMG: A rocket launching with flames and smoke billowing at the base, mountains in the background under a cloudy sky.]
[H6] 2020 December
[H4] Test launch, Version 3.2, LV0005
Successful orbital capability demonstration — On December 15, 2020, LV0005 demonstrated Astra's orbital capability, successfully completing all flight phases and nearly reaching orbit. Building on this breakthrough, Astra pursued a comprehensive upgrade to Rocket 3.3 with an elongated first stage and enhanced upper stage for full orbital achievement.
[H6] 2021 August
[H4] Test Launch, Version 3.3, LV0006
On August 28, 2021, Rocket 3.3's inaugural flight successfully recovered from a single engine shutdown before being incorrectly terminated by the Safety Officer.
[H6] 2021 November
[H4] Successful Orbital Launch for the Space Force Test Program, LV0007
Astra returned to the pad just 2 months after LV0006 and on November 19, 2021, reached orbit and delivered a test payload to orbit with a nominal flight of both first and upper stages.
[H6] 2022 February
[H4] Commercial Launch, Version 3.3, LV0008
Astra demonstrated the mobility of its launch system by transporting both the launcher and rocket to Cape Canaveral and setting up a new launch site in less than a week. On February 10, 2022, after a nominal first stage flight, an off-nominal payload separation occurred and Astra did not fully deliver the 4 payloads on board.
[H6] 2022 March
[H4] Commercial Launch, Version 3.3, LV0009
Successful orbital launch for Spaceflight — On March 15, 2022, LV0009 had a 100% successful flight for Spaceflight, delivering 22 satellites to orbit.
[H6] 2022 June
[H4] Commercial Launch, Version 3.3, LV0010
Astra's second Cape Canaveral flight completed nominal first stage operations, stage separation, and upper stage ignition. An anomalously high fuel consumption rate in the upper stage caused the rocket to reach only 80 percent of orbital velocity before re-entering the atmosphere.
[H6] 2024 October
[H4] Department of Defense awards Astra launch contract
Contract supports advancing and scaling the production capabilities of Astra's unique tactically responsive launch system, to achieve the prototype objective of launching Rocket 4.0 to orbit or suborbit and from the US, Australia, or other locations.View All MilestonesLatest News
6/12/2026Astra CEO Chris Kemp on CNBC: The Economics Reshaping Access to SpaceAstra
01/20/2026Astra Ships 110 Satellite Engines, Focuses on 2026 Test Flight of New RocketAstra
4/4/25Interview: Chris Kemp and Ashlee Vance on what's next for AstraAstra
4/4/25Astra's Comeback for the AgesAstra
3/21/25Astra Appoints Missile Defense Pioneer Dr. Alan Weston to Lead Rocket ProgramAstra
10/23/24Department of Defense Awards Astra Contract Valued Up to $44 MillionAstra
7/18/24Astra Announces Closing of Take-Private TransactionAstra
6/5/24Astra Space, Inc. Files Definitive Information StatementAstra
3/7/24Astra Space, Inc. to be Taken PrivateAstraView All News
6/12/2026Astra CEO Chris Kemp on CNBC: The Economics Reshaping Access to SpaceAstra
01/20/2026Astra Ships 110 Satellite Engines, Focuses on 2026 Test Flight of New RocketAstra
4/4/25Interview: Chris Kemp and Ashlee Vance on what's next for AstraAstra
4/4/25Astra's Comeback for the AgesAstra
3/21/25Astra Appoints Missile Defense Pioneer Dr. Alan Weston to Lead Rocket ProgramAstra
10/23/24Department of Defense Awards Astra Contract Valued Up to $44 MillionAstra
7/18/24Astra Announces Closing of Take-Private TransactionAstra
6/5/24Astra Space, Inc. Files Definitive Information StatementAstraView All News

[H3] Built for Cadence
Launch System 2 was designed from the start for high-cadence operations — up to one launch per week as we scale. As our availability increases, you get a launch partner that can keep pace with your deployment and replenishment needs.
[H3] Direct to Your Orbit
We understand the importance of getting exactly where you need to be — without waiting on rideshares. Dedicated launches accelerate your path to the specific orbit your mission requires, so you can start providing services sooner.
[H3] Best-in-Class Pricing
We're focused on the lowest possible price per dedicated launch and the most affordable path to custom orbits. Spend your capital on spacecraft and products, not on getting to orbit.
[H3] 1 TONNE
[H3] Target Payload Capacity
To mid-inclination low Earth orbit over the course of the product's lifecycle
[H3] Weekly
[H3] Target Launch Cadence
Target launch cadence subject to spaceport availability
[H3] 29°-110°
[H3] Orbital Inclinations Served
Access to a wide range of orbital inclinations
[H2] MOBILE LAUNCH CAPABILITY
[H3] Tactical Flexibility
Our containerized launch system can be transported and deployed to austere locations worldwide — bringing launch capability directly to the mission, not the other way around.
[H3] Rapid Deployment
Access non-traditional sites for unique launch capabilities
[H3] Flexible and Adaptive
Reduced dependence on fixed infrastructure
[H3] Minimal Footprint
Compact launch site requirements enable operations from locations previously unsuitable for rocket launches
[H3] Responsive Launch
Point-to-point delivery capability for time-critical payloadsPlan Your Mission
[H2] Rocket 4.0
[H3] 62 ft
[H3] HEIGHT
18.9 m
[H3] 72 in
[H3] DIAMETER
1.8 m
[H3] 2
[H3] STAGES
[H3] ~66,000 lb
[H3] LIFTOFF MASS
[H3] ~6,500 lbf
[H3] UPPER STAGE THRUST
[H3] ~80,000 lbf
[H3] FIRST STAGE THRUST
[H3] LOX + RP-1
[H3] PROPELLANTS
[H3] 1 TONNE
[H3] PAYLOAD CAPACITY
50° – 500 kmTarget payload capacity over the course of the product lifecycle
[H2] Payload Fairing
Rocket 4.0's fairing supports a broad range of missions—from single ESPA Grande deployments to dual ESPA configurations and multi-cubesat rideshares. A flight-proven thermal protection system shields spacecraft until fairing separation during the upper stage burn.
[H3] 133 in
[H3] HEIGHT
3.4 m
[H3] 67.5 in
[H3] DIAMETER
1.7 m
[IMG: Play video]
[H2] SPACE ACCESS, REDEFINED
Astra's launch system is engineered for flexibility. Whether you need a dedicated ride to a precise orbit or rapid-response launch capability, we're actively developing partnerships to extend Astra's launch network across multiple continents, enabling faster revisit rates for constellation customers, and responsive access for defense and national security missions.Plan Your Mission
[H3] Kodiak, AK
[H3] 59°-110°
Current Spaceport
[H3] Cape Canaveral, FL
[H3] 29°-59°
Current Spaceport
[H3] Saxavord, UK
[H3] 75°-96°
Planned
[IMG: World map highlighting global spaceport locations with icons representing different launch types.]

[H1] News & Updates
Stay informed about our latest news, launches, and mission milestones
June 12, 2026Astra CEO Chris Kemp on CNBC: The Economics Reshaping Access to SpaceAstra
January 20, 2026Astra Ships 110 Satellite Engines, Focuses on 2026 Test Flight of New RocketAstra
April 4, 2025Interview: Chris Kemp and Ashlee Vance on what's next for AstraAstra
April 4, 2025Astra's Comeback for the AgesAstra
March 21, 2025Astra Appoints Missile Defense Pioneer Dr. Alan Weston to Lead Rocket ProgramAstra
October 23, 2024Department of Defense Awards Astra Contract Valued Up to $44 MillionAstra
July 18, 2024Astra Announces Closing of Take-Private TransactionAstra
June 5, 2024Astra Space, Inc. Files Definitive Information StatementAstra
March 7, 2024Astra Space, Inc. to be Taken PrivateAstra
August 29, 2023Payload's Pathfinder: The Future of Astra with CEO Chris KempAstra
July 5, 2023Rocket Factory Tour with NASASpaceflightAstra
May 16, 2023Department of Defense Awards Astra New Launch Contract Add-OnAstra
April 27, 2023Astra Announces Spacecraft Engine Contract with ApexAstra
April 26, 2023Astra Spacetech Day 2023Astra
April 21, 2023Space Force Awards Astra New Launch Order for Rocket 4Astra
December 20, 2022Astra Ships First Multi-Thruster Satellite Engine Flight SetAstra
November 7, 2022Launch System 2 UpdateBy Chris Kemp, Founder, Chairman and CEO of Astra
October 18, 2022Celebrating Committed Orders for Over 200 Astra Spacecraft Engines™!Astra
October 13, 2022Astra Announces Spacecraft Engine Contract with AstroscaleAstra
September 22, 2022The Economy of SpaceAstra
September 12, 2022Q+A with Doug Kunzman, Vice President of Test and Launch Engineering and OperationsAstra
June 1, 2022Governor Newsom Visits Astra — Highlights California’s Investments in InnovationAstra
May 24, 2022Astra Spacetech Day 2022 RecapAstra
May 13, 2022Astra Spacetech Day 2022 — WebcastAstra
May 10, 2022Astra Looks to Expand Launch Capacity with SaxaVord UK SpaceportAstra
April 12, 2022Astra Announces Electric Propulsion System Contract with LeoStellaAstra
March 16, 2022Spaceflight Astra-1 Mission GalleryAstra
February 4, 2022Astra Receives First Part 450 Launch License from FAAMatt Ganser, Vice President of Business Operations
January 27, 2022Astra Awarded VADR Contract by NASAAstra
November 22, 2021Astra Reaches Orbit
October 12, 2021Astra Announces LV0007 Launch Window for the United States Space Force
August 29, 2021Astra Conducts Test LaunchAstra
August 20, 2021On the Ground: Launch Vehicle 0006 Static Fire TestAstra
August 9, 2021Astra Awarded Orbital Services Program (OSP)-4 Contract by the Space ForceAstra
August 5, 2021Astra Announces Multi-Launch Contract and First Launch with Department of DefenseAstra
May 19, 2021Planet Labs: Using space to help life on EarthChris Kemp
May 19, 2021Astra Announces Multi-Launch Contract with PlanetAstra
December 17, 2020Astra makes it to space!Astra
February 1, 2020Welcome to AstraBy Chris Kemp, Co-Founder and CEO, and Adam London, Co-Founder and CTO

[H2] Engine Specifications
Xenon and Krypton electric propulsion system with a magnetically shielded thruster and best-in-class performance for spacecraft with less than 1 kW of power.
[H3] Xe or Kr
[H3] PROPELLANT
[H3] 400 W
[H3] INPUT POWER
[H3] ~25 mN
[H3] THRUST (XE)
[H3] ~18 mN
[H3] THRUST (KR)
[H3] ~1,400 s
[H3] SPECIFIC IMPULSE (XE)
[H3] ~1,300 s
[H3] SPECIFIC IMPULSE (KR)
[H3] 300 kN-s
[H3] TOTAL IMPULSE (XE)
[H3] 300 kN-s
[H3] TOTAL IMPULSE (KR)
[H2] System Overview
[IMG: Mechanical assembly featuring a dark cylindrical tank mounted horizontally beneath a metal base plate with attached fittings and connectors.]
[H3] Compact Thruster
Instant-start, heaterless, center-mounted cathode and permanent magnet design deliver high thrust and high Isp in a compact design which has been ground tested to 12,000 operational cycles.
[IMG: Technical illustration of a cylindrical tank mounted below a flat metal plate with attached mechanical and hydraulic components.]
[H3] Radiation Hardened Power Processing Unit
The Power Processing Unit (PPU) is radiation hardened by design, replacing many microprocessors with simple and reliable components – creating a single circuit board design that is 95% efficient. Increased radiation hardening extends system lifetimes and supports a broad range of LEO and GEO missions.
[IMG: 3D rendering of a black mechanical assembly featuring a cylindrical tank secured by straps beneath a mounting plate with attached pipes and connectors.]
[H3] Feed System with Heritage
Compact, bang-bang feed system with flight-proven components. Each system is leak and vibration tested in an integrated system test to ensure on orbit reliability.
[IMG: Mechanical assembly with a cylindrical tank mounted on a black metal frame featuring attached pipes and valves.]
[H3] Flight-Proven Propellant Tank
Flight-proven, off-the-shelf propellant tanks meet a broad range of mission requirements without the high cost or long lead times of custom tanks. Tanks are sized specifically to fit the unique requirements of each customer mission with flight-proven COPV construction rated to 4,000 psi.
[H2] Multi-Thruster Mission Configurations
Multi-thruster Astra satellite engine configurations scale to meet your mission requirements. Select the number of thrusters for your delta-v requirement and we'll help you pair with a tank that meets your total impulse needs.
[H3] 2-STRING
[IMG: Metallic spacecraft engine mounted on a black panel with two cylindrical thrusters and connected pipes.]
Input Power800 WThrust~50 mN = 25 mN x 2 (Xe)~36 mN = 18 mN x 2 (Kr)Total Impulse600 kN-s (Xe)600 kN-s (Kr)
[H3] 3-STRING
[IMG: 3D rendering of a spacecraft engine component with three cylindrical thrusters mounted on a rectangular panel connected by metal pipes.]
Input Power1,200 WThrust~75 mN = 25 mN x 3 (Xe)~54 mN = 18 mN x 3 (Kr)Total Impulse900 kN-s (Xe)900 kN-s (Kr)
[H3] 4-STRING
[IMG: Black rectangular panel with four cylindrical metallic components connected by small metallic pipes and fittings.]
Input Power1,600 WThrust~100 mN = 25 mN x 4 (Xe)~72 mN = 18 mN x 4 (Kr)Total Impulse1,200 kN-s (Xe)1,200 kN-s (Kr)