POEMMA

POEMMA
Name	POEMMA
Mission type	Astrophysics, Particle Astrophysics
Operator	NASA
Manufacturer	Jet Propulsion Laboratory

POEMMA is a proposed space-based observatory intended to study ultra-high-energy cosmic rays and cosmogenic neutrinos using wide-field optical instruments on satellite platforms. The concept connects astrophysical sources, particle interactions, and atmospheric physics through large-scale observational campaigns planned in partnership with agencies and institutions in the United States and internationally. The mission concept aims to complement ground-based facilities and multimessenger observatories across electromagnetic, neutrino, and gravitational observatories.

Overview

The POEMMA concept builds on heritage from missions and observatories such as Fermi Gamma-ray Space Telescope, Hubble Space Telescope, Swift (satellite), International Space Station, Pierre Auger Observatory, Telescope Array Project, IceCube Neutrino Observatory, HiRes, Fly's Eye, EUSO-Balloon, JEM-EUSO, TUS (satellite), ANITA, Super-Kamiokande, VERITAS, MAGIC (telescope), H.E.S.S., CTA (Cherenkov Telescope Array), KM3NeT, NOvA, SNO, LIGO, Virgo, KAGRA, Planck (spacecraft), WMAP, Chandra X-ray Observatory, XMM-Newton, INTEGRAL, GALEX, Spitzer Space Telescope, James Webb Space Telescope in terms of scientific ambition and operational complexity. The design emphasizes wide-field optics, fast photon detection, and stereo viewing to reconstruct extensive air showers produced by extreme-energy particles interacting in the atmosphere. Mission proponents have engaged with entities like NASA Goddard Space Flight Center, NASA Ames Research Center, European Space Agency, CNES, ISRO, JAXA, UK Space Agency, Italian Space Agency, Centre National d'Études Spatiales for potential collaborations and technology maturation.

Science Objectives

Primary objectives include measuring the spectrum, composition, and arrival directions of ultra-high-energy cosmic rays to probe sources such as Active Galactic Nuclei, Gamma-ray burst, Starburst galaxy, Centaurus A, Virgo Cluster, Perseus Cluster, and candidate accelerators like Magnetar, Pulsar Wind Nebula, Supernova remnant, Seyfert galaxy. The mission also targets cosmogenic neutrinos produced via the Greisen–Zatsepin–Kuzmin process associated with interactions involving the Cosmic Microwave Background, enabling connections with cosmology results from Planck (spacecraft) and large-scale structure surveys like Sloan Digital Sky Survey, Dark Energy Survey, Euclid (spacecraft). Secondary goals include transient follow-up in coordination with observatories such as Fermi Gamma-ray Space Telescope, Swift (satellite), IceCube Neutrino Observatory, LIGO, Virgo, Zwicky Transient Facility, Large Synoptic Survey Telescope (now Vera C. Rubin Observatory), and high-energy missions including NuSTAR, INTEGRAL, MAGIC (telescope), VERITAS to establish multimessenger associations. The project seeks to improve constraints on particle physics at extreme energies relevant to theories tested at CERN, Fermilab, and in cosmic-ray phenomenology developed by collaborations at Columbia University, MIT, Caltech, Stanford University.

Spacecraft and Instrumentation

The observatory concept envisions a pair of low-Earth orbit spacecraft each carrying wide-angle Schmidt-like optics, large focal planes instrumented with multi-anode photomultiplier tubes or silicon photomultipliers, fast electronics, and autonomous triggering systems inspired by detectors used at Pierre Auger Observatory and Telescope Array Project. Instrument heritage and components draw on developments from JPL, Ball Aerospace, Lockheed Martin, Northrop Grumman, SpaceX launch capabilities, and detector designs tested on platforms like EUSO-Balloon, EUSO-SPB, TUS (satellite), and balloon campaigns coordinated with Columbia University and NASA Ames Research Center. The payload design addresses background rejection from airglow, city light from Los Angeles, New York City, Tokyo, and nightglow studies linked to results from TIMED (spacecraft), ORCA, and atmospheric chemistry programs at NOAA. Onboard processing leverages radiation-hardened electronics used in Mars Reconnaissance Orbiter and timing systems comparable to those in Fermi Gamma-ray Space Telescope to achieve nanosecond timing for shower reconstruction.

Mission Design and Operations

Operational concepts include stereo viewing for three-dimensional shower reconstruction, slew capabilities for follow-up observations coordinated with Swift (satellite), Fermi Gamma-ray Space Telescope, and ground arrays like Pierre Auger Observatory and IceCube Neutrino Observatory. Orbit selection considers Sun-synchronous and low-inclination options examined in conjunction with NASA Jet Propulsion Laboratory mission designers and mission operations centers at NASA Goddard Space Flight Center and partner institutions. Launch and deployment plans reference commercial providers such as SpaceX, United Launch Alliance, Arianespace, and integration practices from missions like Landsat 8, Jason-3, and small-satellite constellations developed by Planet Labs. Mission operations will involve scheduling, data downlink via TDRSS, and coordination with international data centers at CERN, IPAC, HEASARC, CSC (Canada), and university networks for real-time alerts and archival distribution.

Data Analysis and Simulation

Data products include event catalogs, reconstructed energies, arrival directions, and composition-sensitive observables to be analyzed with software frameworks and simulation tools such as GEANT4, CORSIKA, AIRES, and analysis pipelines developed in collaboration with teams at Columbia University, University of Chicago, Princeton University, New York University, University of Tokyo, University of Oxford, Imperial College London. Statistics and machine learning approaches will be employed drawing on work from Google DeepMind, OpenAI, and academic groups specializing in high-energy astroparticle analysis. Simulations integrate atmospheric models from ECMWF, NOAA, and Earth-observation inputs from MODIS and VIIRS sensors. Cross-correlation studies will combine datasets from Pierre Auger Observatory, Telescope Array Project, IceCube Neutrino Observatory, Fermi Gamma-ray Space Telescope, VERITAS, MAGIC (telescope), and gravitational-wave alerts from LIGO/Virgo.

Collaborations and Management

Management proposals have identified leadership from NASA, technical contributions from Jet Propulsion Laboratory, science teams drawn from institutions including Columbia University, University of Chicago, New York University, University of Hawaii, University of California, Berkeley, Lawrence Berkeley National Laboratory, Argonne National Laboratory, SLAC National Accelerator Laboratory, and international partners such as CNRS, INFN, CEA, DESY, RIKEN, Kavli Institute for the Physics and Mathematics of the Universe, and Max Planck Society. Stakeholders include advisory boards and review panels modeled on Decadal Survey processes and interactions with programs like Astrophysics Division (NASA), HEASARC, and community consortia that supported projects such as James Webb Space Telescope and Fermi Gamma-ray Space Telescope. Funding and schedule discussions reference typical review milestones used by NASA Science Mission Directorate and coordination with agencies including European Space Agency, JAXA, ISRO, and national laboratories involved in particle astrophysics.

Category:Space telescopes