Names | Explorer 97 IXPE SMEX-14 |
---|---|
Mission type | X-ray astronomy satellite |
Operator | NASA, ASI |
COSPAR ID | 2021-121A |
SATCAT no. | 49954 |
Website | ixpe asi.it/ixpe |
Mission duration | 5 years (planned) 2 years, 11 months and 2 days (in progress) |
Spacecraft properties | |
Spacecraft | Explorer XCVII |
Spacecraft type | Imaging X-ray Polarimetry Explorer |
Bus | BCP-100 |
Manufacturer | Ball Aerospace & Technologies OHB Italia |
Launch mass | 330 kg (730 lb)[1] |
Payload mass | 170 kg (370 lb) |
Dimensions | 1.1 m (3 ft 7 in) in diameter and 5.2 m (17 ft) tall, fully extended Solar array: 2.7 m (8 ft 10 in) fully deployed |
Start of mission | |
Launch date | 9 December 2021, 06:00 UTC[3] |
Rocket | Falcon 9, B1061.5 |
Launch site | Kennedy Space Center, LC-39A |
Contractor | SpaceX |
Entered service | 10 January 2022[2] |
Orbital parameters | |
Reference system | Geocentric orbit |
Regime | Low Earth orbit |
Perigee altitude | 540 km (340 mi) |
Apogee altitude | 540 km (340 mi) |
Inclination | 0.20° |
Period | 90.00 minutes |
Main telescope | |
Type | Three-mirror |
Focal length | 4 m[4] |
Wavelengths | X-ray |
Transponders | |
Band | S-band[5] |
IXPE mission logo Explorers Program |
Imaging X-ray Polarimetry Explorer, commonly known as IXPE or SMEX-14, is a space observatory with three identical telescopes designed to measure the polarization of cosmic X-rays of black holes, neutron stars, and pulsars.[6] The observatory, which was launched on 9 December 2021, is an international collaboration between NASA and the Italian Space Agency (ASI). It is part of NASA's Explorers program, which designs low-cost spacecraft to study heliophysics and astrophysics.
The mission will study exotic astronomical objects and permit mapping of the magnetic fields of black holes, neutron stars, pulsars, supernova remnants, magnetars, quasars, and active galactic nuclei. The high-energy X-ray radiation from these objects' surrounding environment can be polarized – oscillating in a particular direction. Studying the polarization of X-rays reveals the physics of these objects and can provide insights into the high-temperature environments where they are created.[7]
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