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IXPE

active
Science ExplorationLEOCOSPAR 2021-121ALaunched 12/9/2021
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Mission & Launch
Launch Mission
IXPE Mission
Launch Vehicle
Falcon 9 FT5
Launch Date
12/9/2021
Orbit & Mass
Orbit Class
LEO
Altitude
595.5 km
Inclination
0.23 deg
Dry Mass
330 kg
Total Mass
330 kg
Payload Classification
Mission Type
Science Exploration
Payload Category
AST
Payload Class
C
Organizations
Operator
NASA Marshall Space Flight Center
Manufacturer
BAE Systems
Registry
COSPAR ID
2021-121A
UN Registration
ST/SG/SER.E/1041
Track
Mentions
49
All verified mentions of this spacecraft in source documents.
0.0-5.0
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IXPE launched in December 2021 to observe polarized X-rays from extreme objects such as neutron stars and stellar and supermassive black holes.

GeneralPlanValue 3.8Sep 13, 2022Ball Aerospace selected for NASA’s Astrophysics study
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The Falcon 9 booster that flew FM15 previously supported the launches of Crew-1, Crew-2, SXM-8, CRS-23, IXPE, one Starlink mission, Transporter-4, and Transporter-5.

GeneralValue 3.8Jun 20, 2022A SpaceX Falcon 9 frees Globalstar’s FM15 spare satellite successfully from Earth to orbit

The Falcon 9 first stage booster on Transporter-5 previously launched Crew-1, Crew-2, SXM-8, CRS-23, IXPE, one Starlink mission, and Transporter-4.

GeneralValue 3.8May 26, 2022SpaceX Transporter-5 Rideshare Mission Successfully Launches From Cape Canaveral SFS

The Falcon 9 first stage booster used on Transporter-4 previously supported the Crew-1, Crew-2, SXM-8, CRS-23, IXPE, and one Starlink mission.

CapabilityGeneralValue 4.0Apr 1, 2022SpaceX Sends 40 Various Spacecraft To SSO With Successful Transporter-4 Launch At Canaveral

NASA’s Imaging X‑Ray Polarimetry Explorer (IXPE) spacecraft built by Ball Aerospace launched aboard a SpaceX Falcon 9 rocket from NASA’s Kennedy Space Center in Florida.

GeneralPlanValue 4.0Dec 9, 2021Ball Aerospace-Built IXPE Spacecraft For NASA Launched Successfully By SpaceX

A SpaceX Falcon 9 launched NASA’s Imaging X-ray Polarimetry Explorer (IXPE) on 2021-12-09.

PlanGeneralValue 4.0Dec 9, 2021Falcon 9 launches NASA X-ray astronomy satellite

NASA selected SpaceX in 2019 to launch IXPE on a Falcon 9 from Florida.

RelationshipsPlanGeneralValue 4.0Dec 9, 2021Falcon 9 launches NASA X-ray astronomy satellite

SpaceX bid $50,300,000 to launch IXPE.

RelationshipsFinancialPlanValue 4.0Dec 9, 2021Falcon 9 launches NASA X-ray astronomy satellite

At an estimated mass of 325 kg, IXPE is the smallest dedicated payload launched on a Falcon 9.

CapabilityValue 4.0Dec 9, 2021Falcon 9 launches NASA X-ray astronomy satellite

IXPE is a Small Explorer (SMEX) mission with a total cost including launch of $214,000,000.

FinancialGeneralValue 4.0Dec 9, 2021Falcon 9 launches NASA X-ray astronomy satellite

The Falcon 9 booster that launched IXPE previously launched the Crew-1 and Crew-2 commercial crew missions, the SXM-8 communications satellite, and the CRS-23 cargo mission.

GeneralPlanValue 3.5Dec 9, 2021Falcon 9 launches NASA X-ray astronomy satellite

The Imaging X-ray Polarimetry Explorer (IXPE) satellite is set to launch on 2021-12-09 on a SpaceX Falcon 9 from Florida.

PlanGeneralValue 4.0Oct 18, 2021NASA selects gamma-ray telescope mission for development

Contract values for those NASA science launches have varied from $50,300,000 for IXPE to $117,000,000 for Psyche.

FinancialValue 4.0Feb 5, 2021SpaceX to launch NASA astrophysics mission

All three of the previously awarded NASA science mission launches (DART, IXPE, and PACE) will use Falcon 9 rockets.

PlanCapabilityValue 4.0Sep 28, 2020SpaceX wins launch contract for NASA space science mission

The IXPE spacecraft was originally designed to launch on Northrop Grumman’s Pegasus XL for a zero-degree-inclination orbit over 500 km.

PlanCapabilityValue 4.0Aug 6, 2020Pandemic delays launch of NASA astrophysics smallsat mission

NASA awarded a contract to SpaceX in July 2019 for the IXPE launch on Falcon 9, replacing the originally planned Northrop Grumman Pegasus XL.

RelationshipsPlanValue 4.5Aug 6, 2020Pandemic delays launch of NASA astrophysics smallsat mission

IXPE was selected in 2017 as part of NASA’s Explorers program of small astrophysics missions.

PlanRelationshipsValue 3.5Aug 6, 2020Pandemic delays launch of NASA astrophysics smallsat mission

Work on IXPE’s X-ray mirror modules at NASA’s Marshall Space Flight Center was delayed by the COVID-19 pandemic.

PlanGeneralValue 2.8Aug 6, 2020Pandemic delays launch of NASA astrophysics smallsat mission

NASA had planned to launch IXPE in May 2021 on a SpaceX Falcon 9.

PlanGeneralValue 4.0Aug 6, 2020Pandemic delays launch of NASA astrophysics smallsat mission

Work on IXPE at Marshall Space Flight Center resumed in June following the level 4 restrictions.

PlanValue 2.4Aug 6, 2020Pandemic delays launch of NASA astrophysics smallsat mission