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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.
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Pegasus delivered the GALEX, NuSTAR, IRIS, CYGNSS, ICON, and IXPE missions.

RelationshipsCapabilityValue 4.0Jul 13, 2026Air Launch Died the Same Week Responsive Space Arrived

NASA's IXPE (Imaging X-ray Polarization Explorer) has been used for the first time to study a white dwarf star.

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CapabilityGeneralValue 3.5Jan 8, 2026NASA's IXPE Measures White Dwarf Star for First Time

Astronomers examined the intermediate polar EX Hydrae using IXPE's unique X-ray polarization capability.

CapabilityValue 3.5Jan 8, 2026NASA's IXPE Measures White Dwarf Star for First Time

IXPE unlocked the geometry of energetic binary systems by studying EX Hydrae.

GeneralValue 1.0Jan 8, 2026NASA's IXPE Measures White Dwarf Star for First Time

In 2024, IXPE spent nearly one week focused on the white dwarf star system EX Hydrae.

GeneralCapabilityValue 3.0Jan 8, 2026NASA's IXPE Measures White Dwarf Star for First Time

The IXPE space observatory is NASA's first mission designed to study polarized X-rays from extreme astrophysical objects.

GeneralValue 3.0Nov 26, 2025White dwarf magnetic field study reveals inner accretion dynamics

MIT astronomers used NASA's Imaging X-ray Polarimetry Explorer (IXPE) to observe EX Hydrae.

CapabilityGeneralValue 3.5Nov 26, 2025White dwarf magnetic field study reveals inner accretion dynamics

The IXPE spacecraft launched in 2021 and focuses mainly on supernovae, black holes, and neutron stars.

CapabilityPlanValue 3.5Nov 26, 2025White dwarf magnetic field study reveals inner accretion dynamics

In January 2025, IXPE took about 600,000 seconds of X-ray measurements from EX Hydrae.

CapabilityGeneralValue 3.0Nov 26, 2025White dwarf magnetic field study reveals inner accretion dynamics

The Falcon 9 first stage booster that flew Hera previously launched Crew-1, Crew-2, SXM-8, CRS-23, IXPE, Transporter-4, Transporter-5, Globalstar FM15, ISI EROS C-3, Korea 425, Maxar 1, ASBM, and 10 Starlink missions.

CapabilityGeneralValue 4.0Oct 7, 2024SpaceX sends off ESA’s Hera planetary defense mission to study NASA’s astroid redirection

The Falcon 9 booster that flew the Maxar 1 mission had previously supported the launches of Crew-1, Crew-2, SXM-8, CRS-23, IXPE, Transporter-4, Transporter-5, Globalstar FM15, ISI EROS C-3, Korea 425, and nine Starlink missions.

GeneralPlanValue 3.2May 2, 2024SpaceX launches Maxar’s WorldView mission from California, and another SpaceX Starlink to launch from Florida hours later

The first-stage booster supporting the Vandenberg mission previously launched Crew-1, Crew-2, SXM-8, CRS-23, IXPE, Transporter-4, Transporter-5, Globalstar FM15, ISI EROS C-3, Korea 425, and multiple Starlink missions.

GeneralPlanValue 3.4Jan 15, 2024UPDATE #6 Spacex’s two successful launches all on one day from two coasts

The first stage booster supporting the SLC-4E Vandenberg mission is on its 18th flight and previously launched Crew-1, Crew-2, SXM-8, CRS-23, IXPE, Transporter-4, Transporter-5, Globalstar FM15, ISI EROS C-3, Korea 425, and seven Starlink missions.

GeneralPlanValue 4.0Jan 13, 2024UPDATE #4 SpaceX will have two launches in two days on two coasts

The SLC-4E booster referenced in multiple updates is making its 18th flight and previously launched Crew-1, Crew-2, SXM-8, CRS-23, IXPE, Transporter-4, Transporter-5, Globalstar FM15, ISI EROS C-3, Korea 425 and seven Starlink missions.

CapabilityGeneralValue 4.0Jan 13, 2024UPDATE #5 Revised now two launches all on one day from two coasts

The 18th-flight Falcon 9 first-stage booster previously launched Crew-1, Crew-2, SXM-8, CRS-23, IXPE, Transporter-4, Transporter-5, Globalstar FM15, ISI EROS C-3, Korea 425, and seven Starlink missions.

GeneralValue 4.0Jan 10, 2024UPDATE #2 Another delay for SpaceX launch of 22 Starlink smallsats

The first stage booster previously launched Crew-1, Crew-2, SXM-8, CRS-23, IXPE, Transporter-4, Transporter-5, Globalstar FM15, ISI EROS C-3, Korea 425 and seven Starlink missions.

GeneralValue 3.5Jan 9, 2024UPDATE SpaceX delays Tuesday launch and schedules a new date

The Falcon 9 booster supporting the Korea 425 mission previously launched IXPE and Transporter-4.

GeneralPlanValue 3.0Dec 1, 2023UPDATE: SpaceX successfully launches the Korea 425 top secret mission with 25 smallsats on board

The first stage booster supporting the Korea 425 mission is flying for the 17th time and previously supported Crew-1, Crew-2, SXM-8, CRS-23, IXPE, Transporter-4, Transporter-5, Globalstar FM15, ISI EROS C-3, and seven Starlink missions.

CapabilityGeneralValue 4.2Nov 30, 2023SpaceX’s Friday Korea 425 mission launch includes top secret reconnaissance smallsats for APA

The first stage booster supporting the mission previously launched Crew-1, Crew-2, SXM-8, CRS-23, IXPE, Transporter-4, Transporter-5, Globalstar FM15, ISI EROS C-3, and three Starlink missions.

GeneralValue 3.8Apr 29, 2023SpaceX Starlink push successful

The 2022-12-29 Falcon 9 booster previously supported Crew-1, Crew-2, SXM-8, CRS-23, IXPE, Transporter-4, Transporter-5, Globalstar FM15, and two Starlink missions.

GeneralValue 4.0Jan 1, 2023Launched: SpaceX’s 2Gen Starlink satellites + ImageSat International’s EROS C-3 satellite