cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.48577/jpl.kqml5d
title: Downlink and uplink laser transmitters operational performance for the Deep Space Optical Communications project on the Psyche mission

description: The Deep Space Optical Communications (DSOC) project, hosted on the Psyche spacecraft, has recently successfully completed its first year of operations. The flight system involved a laser transmitter assembly (LTA) capable of up to 4 W of average power at 1550 nm with data modulated at up to 267 Mbps using pulse position modulation (PPM) and leveraging telecom components in the design. The downlink laser transmitter operated for over 120 hrs on a weekly cadence at distances up to over 3 AU where 8 Mbps was demonstrated during nighttime operations. The uplink laser assembly (ULA) was integrated into the DSOC ground laser transmitter (GLT) facility at the JPL Optical Communication Telescope Lab and provided a beacon reference for the flight terminal with over 2 kW average power and an uplink data rate of 1.8 kbps at 1064 nm over the entire range. The ULA incorporated up to ten individual laser units based on commercial systems but modified to provide the uplink data modulation. Trends and performance data will be reported on for both systems along with an anomaly in the ground testing of the EM LTA.
DOI: 10.48577/jpl.vmkrct
title: ARIA and OPERA Products for Earthquake Response

description: No abstract available.
DOI: 10.48577/jpl.5infil
title: Atomic Quantum Sensors for Planetary Science

description: No abstract available.
DOI: 10.48577/jpl.vo5vkl
title: Anomalies on the Psyche Mission: Fault Protection Performance and Lessons Learned

description: Abstract— On October 13th, 2023, the Psyche Mission launched from Cape Canaveral, Florida beginning its 6-and-a-half-year journey to the metal-rich asteroid (16) Psyche. With an arrival date in January 2029, the Psyche spacecraft faces a unique journey to the largest metallic asteroid in our Solar System. The first milestone for the Spacecraft to cross required successfully executing a series of autonomous launch and solar array deployment activities, finding the sun, and achieving a power positive, communicative, and thermally stable configuration on the day of launch. Following launch, the Psyche spacecraft completed a 100-day period of initial checkouts (ICO), during which several key activities demonstrated the health and functionality of all the subsystems and characterized the behavior under planned operating scenarios prior to kicking off the cruise thrusting portion of the mission. During this first portion of the mission, the Spacecraft Team built products, designed tactical and strategic activities, and executed them to support readiness for cruise thrusting. First time activities mean numerous opportunities for problems and unintentional commanding errors to occur, making this period especially critical for the Psyche Fault Protection team, tasked with protecting the health and safety of the spacecraft in the presence of faults. Several unexpected anomalies and idiosyncratic behaviors occurred on Psyche due to conservative threshold settings and limitations in testing fidelity. This paper discusses the anomalies that have occurred, the processes the Fault Protection team used to detect, isolate, and respond to them, along with the lessons learned after the fact. This paper hopes to share these lessons learned with future missions to strengthen Fault Protection designs, and operational process. In concert with a discussion on the anomalies and idiosyncrasies, this paper discusses the downlink, analysis, and trending process implemented by the Psyche Fault Protection team to illustrate the ways in which operational risks can be driven down and the benefit to building robust review processes.
DOI: 10.48577/jpl.rx8xi4
title: Free-Space Optical Communication Using an Optical Frequency Comb and Modulating Retroreflectors

description: The paper presents a high data rate optical communicationmethod with a swarm of unmanned aerial vehicles(UAVs) by combining quantum-well modulating retroreflectors(MRRs) and an optical frequency comb.The passive optical link between a laser station and UAVsusing MRRs can reduce the mission complexity and powerconsumption at UAV sites. While increasing the laser power is astraightforward way to further decrease power consumption atUAV sites, the saturation power of the photodetector (PD) at thelaser station site can set the lower limit of power consumptionsince one PD has to receive all lights from UAVs.We used multiple comb modes as independent data transfercarriers. We designed a simple optical system consisting of aquantum-well modulator (QWM), a diffraction grating, a lens,and a planar focal plane. We experimentally realized thataround 100 modes can be used with a near-diffraction limit.Our simulation showed that using a comb can reduce powerconsumption at UAV sites compared to using a continuous-wave(CW) laser with some specific conditions. One of the applicationsof this method is a distributed interferometric antenna thatobserves the frequency range from radio frequencies to a fewtens of GHz.
DOI: 10.48577/jpl.bfekoq
title: ABOVEGROUND BIOMASS ESTIMATION USING NISAR SIMULATED ALOS-2 TIME SERIES DATA

description: Aboveground biomass (AGB) is a critical parameter for improving the understanding of global carbon cycle and to develop sustainable forest management. However, a large uncertainty prevails. L-band data demonstrates strong potential for accurate retrieval of low-biomass regions (&lt;100 Mg ha-1). The upcoming NASA-ISRO Synthetic Aperture Radar will collect data at L- and S-band over earth’s landmass with a repeat period of 12 days, allowing us to have ample data for monitoring biomass and its dynamics. The one the key requirement of the mission is to produce annual AGB maps at 1-ha resolution with RMS accuracy of 20 Mg/ha for 80 percentage of area over low-biomass regions. The NISAR biomass algorithm will generate AGB map based on the parameterization of semi-empirical model along with NISAR time-series dual pol data (HH and HV). To calibrate and validate the model for mission requirements, reference estimates of AGB over the ground plots and LiDAR data collected over the selected sites distributed across different global ecoregions are used. This paper presents the initial results of the calibration/validation of NISAR AGB retrieval algorithm over the Lenoir Landing (LENO), Alabama, USA using NISAR simulated ALOS-2 time series data. Five multi-temporal dual-pol HH and HV NISAR Simulated ALOS 2 data was used to assess the performance of the model. The model AGB retrieval results shows that the NISAR model was able to achieve the RMS accuracy within 20 Mg/ha.
DOI: 10.48577/jpl.6yawqr
title: Mapping the near-infrared sky with SPHEREx

description: No abstract available.
DOI: 10.48577/jpl.qtjell
title: Federated multi-agent mapping for planetary exploration

description: A growing challenge in multi-agent robotic exploration lies in managing vast quantities of decentralized, heterogeneous streaming data produced during interactions with dynamic environments. Simultaneously, agents should acquire versatile skill sets through diversified experiences in varying contexts. Centralizing or transmitting entire largescale data poses impracticalities regarding storage capacity and communication bandwidth. Therefore, we investigate federated learning techniques applied to distributed mapping as a promising strategy to enable multi-agent learning without requiring transmission or comprehensive datasets. We define an approach based on implicit neural mapping, meta-initialized on Earth mapping data and show a capacity for models to generalize to novel domains such as the Martian surface or glaciers. Furthermore, we evaluate the effectiveness of this distributed mapping approach in relevant real-world deployment scenarios.
DOI: 10.48577/jpl.bij0sy
title: Prelaunch Test Program for the Orbiting Carbon Observatory Spectrometers

description: No abstract available.
DOI: 10.48577/jpl.ckqpfn
title: NEO Surveyor Navigation Design Overview

description: NASA’s Near-Earth Object (NEO) Surveyor mission is designed to find, track, and characterize Potentially Hazardous Asteroids (PHAs) and comets, with a requirement to find the majority of asteroids large enough to cause severe regional damage. Expected to launch in September 2027, the infrared space telescope will execute its survey of NEOs from a Sun-Earth L1 halo orbit. This paper provides a detailed update of the navigation design and performance relative to previous publications, including updates to the tracking plan, modeling of momentum desaturation maneuvers, and solar radiation pressure model parameterization. Sensitivity of the navigation strategy to mismodeling is also investigated.
DOI: 10.15468/dl.mz9a6c
title: Occurrence Download

description: A dataset containing 2407 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Setaria viridis var. viridis)",
 "BasisOfRecord is one of (Specimen, Human Observation, Observation, Living Specimen, Machine Observation, Literature Occurrence)",
 "Geometry POLYGON((-180 -90,180 -90,180 90,-180 90,-180 -90))",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "Year is greater than or equal to 1945"
 ]
}

 The dataset includes 2407 records from 75 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0002726-250227182430271/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.ajaj29
title: Occurrence Download

description: A dataset containing 4 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Carpobrotus acinaciformis x Carpobrotus edulis)",
 "BasisOfRecord is one of (Specimen, Human Observation, Observation, Living Specimen, Machine Observation, Literature Occurrence)",
 "Geometry POLYGON((-180 -90,180 -90,180 90,-180 90,-180 -90))",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "Year is greater than or equal to 1945"
 ]
}

 The dataset includes 4 records from 4 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0002697-250227182400228/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.48577/jpl.0pidfi
title: Statistics in UQ and UQ in Statistics

description: No abstract available.
DOI: 10.48577/jpl.8btqzj
title: Spatial Uncertainty Quantification for Remote Sensing

description: No abstract available.
DOI: 10.48577/jpl.fzywqs
title: Highlights of the Psyche Environmental Assurance Program

description: Environmental requirements for the Psyche mission were established early in the program, and a comprehensive environmental test and analysis implementation program was developed as the spacecraft design matured. Several design scope changes happened during development (for example, changed magnetometer design and vendor to an international institution), and the test program adjusted accordingly. The environmental test program included numerous assembly-level mission-qualifying tests, which fed into the system-level environmental test program with focus on spacecraft level verification. This paper describes the highlights of selected portions of the assembly and system-level test program.
DOI: 10.48577/jpl.ok29wr
title: MSR Returned Sample Handling and Sample Removal Technology Development

description: The Mars Returned Sample Handling (MRSH) task developed key technologies to remove gas and solid samples collected within Returnable Sample Tube Assemblies (RSTA) by the Mars 2020 Perseverance rover and returned to Earth. This includes technologies to: deintegrate the Earth Entry System (EES) containing the Orbiting Sample (OS) container; deintegrate the OS containing up to 30 RSTA sample tubes; enclose the RSTAs within a sealed secondary container for protection during handling operations and pre-basic characterization studies; extract gas stored within the tubes; extract solid samples stored within the tubes; and transfer the solid samples into a Core Dissection Tray Container (CDTC) for sample processing, examination, safety assessment, and storage. The sample handling approach is being developed with input from the Sample Receiving Project (SRP) Joint Science Office (JSO) and Johnson Space Center (JSC) Astromaterials Research and Exploration Science (ARES) to address returned sample science, curation, contamination control, and planetary protection concerns. Prototypes for a Secondary Outer Containment Case (SOCC) and Sample Tube Isolation Container (STIC) were fabricated to assess x-ray computed tomography (XCT) and magnetometry compatibility. Testbeds were developed to demonstrate sample tube puncture, cutting, and sample removal. Hardware mockups were built to assess ergonomics for operation and refurbishment within a Doubled Walled Isolator (DWI). A robotic Handling System (HS) testbed was assembled to test RSTA and CDTC pick-and-place operations using a robotic arm and end effector. An end-to-end demonstration of sample handling operations was carried out on a flight-like Mars 2020 RSTA with a Mars analog core sample to validate the system and operational concept. Testing of critical sample handling functions demonstrated proof-of-concept and technology validation to Technology Readiness Level (TRL) 3.
DOI: 10.48577/jpl.vzk9xy
title: Tropical Forest Functional Variation from Space

description: No abstract available.
DOI: 10.48577/jpl.gg9ss6
title: Testbed for Modulating Retroreflectors Enabled Passive Optical Communications

description: A “laserless” optical communication transceiver(also known as a “modulating retroreflector”) uses a wide-angleretroreflector and surface-normal electro-absorptive quantumwell modulators to efficiently encode information onto theoptical beam, which is reflected along the same path ofincidence. This is particularly attractive to planetary missionconcepts using a highly asymmetric resource-allocatedarchitecture and examples include surface missions to theMoon, Mars, and other planetary destinations. A key challengeis the wide temperature range that the transceiver needs tooperate without high-power active temperature control. This isparticularly challenging for ground prototyping work when thetemperature is as low as 100K (lunar night) in the ambientlaboratory environment. We designed and constructed alaboratory testbed that can simulate the required operatingtemperature range for the passive optical communicationtransceiver including the optics, quantum-well modulator, andnecessary electronics. The testbed also includes a design that canwork with both continuous-wave lasers and optical frequencycombs (pulsed lasers) as the interrogating light sources.
DOI: 10.48577/jpl.sf5l9b
title: Europa Clipper Misison Design talk at Stanford

description: No abstract available.
DOI: 10.48577/jpl.yidytn
title: Expendable Nanosats Concept for Uranus Exploration

description: No abstract available.
DOI: 10.48577/jpl.algl3f
title: Mitigation of Turbulence-Induced Losses over a Terrestrial Laser Link for Quantum and Optical Communications

description: Abstract: Simulations and preliminary experimental results for the optimization of a laser link over a long-range (9 km) slant-horizontal terrestrial propagation path between the JPL Mesa Test Range and the roof of Caltech Hall at a distance of 9 km, is described and evaluated. For the simulation, a collimated Gaussian beam was transmitted by a telescope located on the roof of Caltech Hall, propagated through the slant-horizontal line-of-sight (LOS) path to the JPL Mesa Test range where it was received by another telescope, and focused to a point-spread function (PSF) in the imaging plane where it is coupled into a high-performance SMF-28 single-mode optical fiber for detection and further processing. Turbulence along the path was simulated using the Split-Step Beam Propagation Method (SSBPM), which approximates continuous turbulence along the line-of-sight with a large number of discrete phase-screens, with realistic spatial and temporal correlations included in the model. The coupling coefficient was evaluated via analysis and simulation with and without tip-tilt compensation, and the improvement in the coupling coefficient quantified. The simulation model will be used to assess the feasibility of future urban-scale quantum communication links, that will require optimal link efficiency. This model is also applicable to ground-to-space laser links, where the same techniques can be employed to mitigate deep fades at the spacecraft or at the ground receiver due to atmospheric turbulence, thus leading to significant improvements in overall system performance.
DOI: 10.48577/jpl.lrcntp
title: Sensitivity limits to cosmological constraints on early Universe physics: lessons from Planck for future measurements

description: No abstract available.
DOI: 10.15468/dl.ks7hd7
title: Occurrence Download

description: A dataset listing the 210 species recorded in GBIF matching the query:
{
 "DatasetKey" : [
 "is Shellfish (ASJK_MS)"
 ]
}

 The dataset's 210 records were derived from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0002725-250227182430271/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.48577/jpl.0izrp4
title: Architecting the Mars Returned Sample Handling System-of-Systems with Agile MBSE

description: No abstract available.
DOI: 10.48577/jpl.orzetr
title: Ground Laser Receivers for the Deep Space Optical Communications Demonstration: Performance and lessons learned from first year of operations

description: The Deep Space Optical Communications (DSOC) project has concluded its first year of operations, demonstrating high-photon-efficiency downlinks from 163 kbps to 267 Mbps at ranges from 0.1 to 2.7 AU. Here we report on the performance of the primary Ground Laser Receiver (GLR), installed at Palomar Observatory’s 5-m Hale telescope, as well as the secondary receiver, installed at Jet Propulsion Laboratory’s Optical Communication Telescope Laboratory (OCTL) where it shares the 1-m aperture with DSOC’s Ground Laser Transmitter (GLT). We also discuss lessons learned from operations.
DOI: 10.48577/jpl.59yulk
title: ExEP - AU MIc flares: A multiwavelength study of a magnetically active planet host

description: No abstract available.
DOI: 10.48577/jpl.elqnq4
title: Robust Level-1 Differential Correction Using Screens

description: No abstract available.
DOI: 10.48577/jpl.axz0hz
title: Overview of First Two Years of JWST MIRI Cryocooler On-Orbit Performance

description: No abstract available.
DOI: 10.48577/jpl.m2tfzc
title: Exploring Moons: Preparing for Future Missions to Europa and the Moon

description: No abstract available.
DOI: 10.15468/dl.jd2e8y
title: Occurrence Download

description: A dataset containing 2262 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Carpobrotus chilensis (Molina) N.E.Br.)",
 "BasisOfRecord is one of (Specimen, Human Observation, Observation, Living Specimen, Machine Observation, Literature Occurrence)",
 "Geometry POLYGON((-180 -90,180 -90,180 90,-180 90,-180 -90))",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "Year is greater than or equal to 1945"
 ]
}

 The dataset includes 2262 records from 65 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0002699-250227182400228/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.xdgfr4
title: Occurrence Download

description: A dataset containing 678 species occurrences available in GBIF matching the query:
{
 "and" : [
 "BasisOfRecord is Specimen",
 "Geometry POLYGON((-11.44062 34.25037,6.42627 34.25037,6.42627 44.69126,-11.44062 44.69126,-11.44062 34.25037))",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "TaxonKey is Mercurialis L.",
 "Year 2000-2025"
 ]
}

 The dataset includes 678 records from 41 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0002728-250227182430271/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.nghtaw
title: Occurrence Download

description: A dataset containing 59 species occurrences available in GBIF matching the query:
{
 "and" : [
 "GadmGid is ROU",
 "TaxonKey is Impatiens noli-tangere L."
 ]
}

 The dataset includes 59 records from 7 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0002729-250227182430271/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.uts4na
title: Occurrence Download

description: A dataset containing 30101 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Carpobrotus edulis (L.) N.E.Br.)",
 "BasisOfRecord is one of (Specimen, Human Observation, Observation, Living Specimen, Machine Observation, Literature Occurrence)",
 "Geometry POLYGON((-180 -90,180 -90,180 90,-180 90,-180 -90))",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "Year is greater than or equal to 1945"
 ]
}

 The dataset includes 30101 records from 267 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0002700-250227182400228/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.rhfbv2
title: Occurrence Download

description: A dataset containing 2577 species occurrences available in GBIF matching the query:
{
 "DatasetKey" : [
 "is Shellfish (WSHN-MS)"
 ]
}

 The dataset includes 2577 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0002730-250227182430271/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.dfgqvk
title: Occurrence Download

description: A dataset containing 21389 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Carrichtera annua (L.) DC.)",
 "BasisOfRecord is one of (Specimen, Human Observation, Observation, Living Specimen, Machine Observation, Literature Occurrence)",
 "Geometry POLYGON((-180 -90,180 -90,180 90,-180 90,-180 -90))",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "Year is greater than or equal to 1945"
 ]
}

 The dataset includes 21389 records from 114 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0002731-250227182430271/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.34740/kaggle/dsv/10895972
title: Hacker News Cumulative Data
DOI: 10.15468/dl.wtuysz
title: Occurrence Download

description: A dataset containing 43 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is Peru",
 "TaxonKey is Caretta caretta (Linnaeus, 1758)"
 ]
}

 The dataset includes 43 records from 2 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0002732-250227182430271/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.xtrhdc
title: Occurrence Download

description: A dataset containing 5456 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Continent is Asia",
 "TaxonKey is Robinia pseudoacacia L."
 ]
}

 The dataset includes 5456 records from 161 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0002733-250227182430271/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.