IXPE Mission System Concept and Development Status

The goal of the Imaging X-Ray Polarimetry Explorer (IXPE) Mission, a NASA Small Explorer (SMEX), is to expand understanding of high-energy astrophysical processes and sources, in support of NASA's first science objective in Astrophysics: “Discover how the universe works.” IXPE, an international collaboration, will conduct X-ray imaging polarimetry for multiple categories of cosmic X-ray sources such as neutron stars, stellar-mass black holes, supernova remnants and active galactic nuclei. The Observatory uses a single science operational mode capturing the X-ray data from the targets. The IXPE Observatory consists of spacecraft and payload modules built up in parallel to form the Observatory during system integration and test. The payload includes three X-ray telescopes each consisting of a polarization-sensitive, gas pixel X-ray detector, paired with its corresponding grazing incidence mirror module assembly (MMA). A deployable boom provides the correct separation (focal length) between the detector units (DU) and MMAs. These payload elements are supported by the IXPE spacecraft which is derived from the BCP-small spacecraft architecture. This paper summarizes the IXPE mission science objectives, updates the Observatory implementation concept including the payload and spacecraft elements and summarizes the mission status since last year's conference.

[1]  David Kaufman,et al.  Space Test Program Standard Interface Vehicle lessons learned , 2010, 2010 IEEE Aerospace Conference.

[2]  Scott Mitchell,et al.  IXPE Observatory Integrated Thermal, Power, and Attitude Mission Design Analysis , 2019, 2019 IEEE Aerospace Conference.

[3]  David Acton,et al.  STP-SIV: Lessons learned through the first two Standard Interface Vehicles , 2012, 2012 IEEE Aerospace Conference.

[4]  Hallie Walden,et al.  Department of Defense (DoD) Space Test Program (STP) Payload Design Criteria for the STP Standard Interface Vehicle (SIV) , 2007 .

[5]  James Masciarelli,et al.  IXPE Observatory Verification and Validation Approach and Threads Tool , 2019, 2019 IEEE Aerospace Conference.

[6]  Paul Jaffe,et al.  STP-SIV and ORS ISET spacecraft-to-payload interface standards , 2009, 2009 IEEE Aerospace conference.

[7]  Carolyn Atkins,et al.  Optics Requirements for X-Ray Astronomy and Developments at the Marshall Space Flight Center , 2013 .

[8]  Giovanni Pareschi,et al.  The gas pixel detector at the focus of an x-ray optics , 2013, Optics & Photonics - Optical Engineering + Applications.

[9]  William D. Deininger,et al.  Imaging X-Ray Polarimeter Explorer Mission Spacecraft Implementation Concept , 2017 .

[10]  Michael Weiss,et al.  Overview and status of the Kepler Mission , 2004, SPIE Astronomical Telescopes + Instrumentation.

[11]  Oswald H. W. Siegmund,et al.  UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XVIII , 2007 .

[12]  Jessie L. Dotson,et al.  KEPLER SCIENCE OPERATIONS , 2010, 1001.0437.

[13]  S. O'Dell,et al.  X-ray optic developments at NASA's MSFC , 2013, Europe Optics + Optoelectronics.

[14]  Stephen L. O'Dell,et al.  Imaging X-Ray Polarimetry Explorer Small Satellite and Payload Attitude Determination and Control , 2018, 2018 AIAA SPACE and Astronautics Forum and Exposition.

[15]  Kirtland Afb,et al.  Payload Design Criteria for the DoD Space Test Program Standard Interface Vehicle , 2008 .

[16]  Ronaldo Bellazzini,et al.  Performance of the Gas Pixel Detector: an x-ray imaging polarimeter for upcoming missions of astrophysics , 2016, Astronomical Telescopes + Instrumentation.

[17]  Stephen L. O'Dell,et al.  Imaging X-Ray Polarimetry Explorer Mission Attitude Determination and Control Concept , 2018 .

[18]  M. Pavlinsky,et al.  ART-XC/SRG: status of the x-ray optics development , 2014, Astronomical Telescopes and Instrumentation.

[19]  Ronaldo Bellazzini,et al.  The background of the gas pixel detector and its impact on imaging X-ray polarimetry , 2012, Other Conferences.

[20]  Martin C. Weisskopf,et al.  The Imaging X-ray Polarimetry Explorer (IXPE) An Overview of the Mission and its Science , 2017 .

[21]  Pravin K. Aggarwal,et al.  Description of the Green Propellant Infusion Mission (GPIM) mission system , 2014, 2014 IEEE Aerospace Conference.

[22]  Brian Ramsey,et al.  IXPE - The Imaging X-Ray Polarimetry Explorer , 2014 .

[23]  F. Ozel,et al.  Enduring Quests-Daring Visions (NASA Astrophysics in the Next Three Decades) , 2014, 1401.3741.

[24]  Ronaldo Bellazzini,et al.  The Gas Pixel Detector as a Solar X-Ray Polarimeter and Imager , 2011, 1111.6391.

[25]  Larry Guy,et al.  Small Satellite Platform and Payload Concept for Implementing the Imaging X-Ray Polarimeter Explorer (IXPE) Mission , 2018 .

[26]  Alessio Trois,et al.  IXPE Mission System Concept and Development Status , 2019, 2019 IEEE Aerospace Conference.

[27]  Marco Marengo,et al.  The Imaging X-Ray Polarimetry Explorer (IXPE): technical overview II , 2018, Optical Engineering + Applications.

[28]  Alessio Trois,et al.  Observatory design for the imaging X-Ray Polarimetry Explorer (IXPE) mission , 2018, 2018 IEEE Aerospace Conference.

[29]  Christopher H. McLean Green Propellant Infusion Mission Program Overview, Status, and Flight Operations , 2015 .

[30]  Mikhail V. Gubarev,et al.  Active figure control effects on mounting strategy for x-ray optics , 2014, Optics & Photonics - Optical Engineering + Applications.

[31]  K. Reese,et al.  Rapid accommodation of payloads on the Standard Interface Vehicle through use of a standard payload interface , 2013, 2013 IEEE Aerospace Conference.

[32]  David Acton,et al.  Incorporation of secondary payloads onto the Green Propellant Infusion Mission (GPIM) , 2015, 2015 IEEE Aerospace Conference.

[33]  Martin C. Weisskopf,et al.  Active full-shell grazing-incidence optics , 2016, Optical Engineering + Applications.

[34]  Martin C. Weisskopf,et al.  X-ray optics at NASA Marshall Space Flight Center , 2015, Europe Optics + Optoelectronics.

[35]  Martin C. Weisskopf,et al.  Small Satellite Platform Imaging X-Ray Polarimetry (IXPE) Mission Concept and Implementation , 2017 .

[36]  Martin C. Weisskopf,et al.  The Imaging X-ray Polarimetry Explorer (IXPE) , 2016, Astronomical Telescopes + Instrumentation.

[37]  William Deininger,et al.  Implementation of the Green Propellant Infusion Mission (GPIM) on a Ball Aerospace BCP-100 Spacecraft Bus , 2013 .

[38]  Carmelo Sgrò,et al.  The gas pixel detector on board the IXPE mission , 2017, Optical Engineering + Applications.

[39]  John C. Geary,et al.  The Kepler Mission: A Search for Terrestrial Planets - Development Status , 2003 .

[40]  Mikhail V. Gubarev,et al.  Mounting for fabrication, metrology, and assembly of full-shell grazing-incidence optics , 2014, Astronomical Telescopes and Instrumentation.

[41]  B. Ramsey IXPE: The Imaging X-ray Polarimetry Explorer, Implementing a Dedicated Polarimetry Mission , 2014 .

[42]  Lindsay Glesener,et al.  FIRST IMAGES FROM THE FOCUSING OPTICS X-RAY SOLAR IMAGER , 2014 .

[43]  Christopher H. McLean Green Propellant Infusion Mission Program Overview , 2013 .