cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.48577/jpl.o1kk5n
title: Intrinsic dimensionality as a metric for temporal plant diversity evaluation: Case study from the SHIFT campaign

description: Current biodiversity metrics derived from remote sensing data are typically applied to small local areas, require significant training data, and are not easily extensible globally. Here we propose the mathematical concept of intrinsic dimensionality (ID)—quantifying the degrees of freedom in a process—as a method to quantify terrestrial plant diversity without a need for in situ training data. This technique has been applied to airborne imaging spectroscopy data from the Surface Biology and Geology HIgh Frequency Time series (SHIFT) airborne campaign, with weekly overflights from February to May 2022 over a region in California stretching from Figueroa Mountain in the Los Padres National Forest to Point Conception and adjacent coastal areas. Preliminary results show an encouraging and significant correlation between spatially calculated ID and in situ vegetation species richness data. In addition, the spatial ID remained largely unchanged over the course of three months during the spring green-up period when vegetation characteristics and spectral responses were changing rapidly, and temporal ID continues to increment. This robustness to seasonal change is desirable in any measure of species richness because it is insulated from changes in vegetation condition that are unrelated to biodiversity. Even though the spatial ID is consistent across acquisition dates, when considering the full time series (temporal ID), we find that there is a large amount of spectral information to be gained through high-frequency temporal sampling of spectral data over vegetated regions.
DOI: 10.3886/e141261
title: Patient blood type is associated with response to immune checkpoint blockade in metastatic cancer

description: This is the database for the project "Patient blood type is associated with response to immune checkpoint blockade in metastatic cancer".
DOI: 10.3886/e141261v1-170441
title: Patient blood type is associated with response to immune checkpoint blockade in metastatic cancer

description: This is the database for the project "Patient blood type is associated with response to immune checkpoint blockade in metastatic cancer".
DOI: 10.48577/jpl.o08mnr
title: SNSPDs narrowed by atomic layer etching

description: Superconducting nanowire single photon detectors (SNSPDs) have shown remark-able photon detection characteristics, and novel scalability architectures allow for thefabrication of SNSPD cameras with over a hundred thousand pixels. Producing suchlarge format devices requires the use of a high throughput lithography process suchas stepper photolithography. This restricts nanowire widths to the resolution limit ofthe photolithography system which limits performance. In this paper, we develop anovel SNSPD fabrication process that uses bi-directional atomic layer etching to re-duce nanowire widths by &gt;100 nm, achieving performance that has only previouslybeen attained using low throughput electron beam lithography. This novel fabricationprocess will allow for high pixel count SNSPD cameras with improved performance dueto reduced nanowire widths.
DOI: 10.15468/dl.fe67w7
title: Occurrence Download

description: A dataset containing 29825 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is Mexico",
 "DatasetKey is one of (iNaturalist Research-grade Observations, Odonata Central)",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "TaxonKey is Odonata"
 ]
}

 The dataset includes 29825 records from 2 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0000702-250310093411724/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.bktz52
title: Occurrence Download

description: A dataset containing 29825 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is Mexico",
 "DatasetKey is one of (iNaturalist Research-grade Observations, Odonata Central)",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "TaxonKey is Odonata"
 ]
}

 The dataset includes 29825 records from 2 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0000703-250310093411724/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.tjjwu7
title: Occurrence Download

description: A dataset containing 449 species occurrences available in GBIF matching the query:
{
 "InstitutionKey" : [
 "is d91cecec-125a-49c2-8551-d53dd2fa10f5"
 ]
}

 The dataset includes 449 records from 5 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0000704-250310093411724/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.48577/jpl.1koter
title: Capabilities and Recent Projects of the Jet Propulsion Laboratory’s Guidance and Control Section

description: This paper presents a survey of select flight projects and technology development efforts in the NASA Jet Propulsion Laboratory Guidance and Control (GNC) Section. This survey is not exhaustive, but it is intended to demonstrate the broad range of capabilities and areas of expertise held by the GNC section. The programs span the gamut of ground-only testbeds to Earth orbiters to deep space flyers and the technologies needed to pursue ever more daring and innovative missions. The GNC concepts and technologies presented in this paper are informed by experience and includes autonomous operation, and systems-level thinking. This paper will also present directions and interests the Section will continue pursuing as it develops new GNC systems for flight.
DOI: 10.48577/jpl.twtxsk
title: Radio Transmitter Development to Support multi-Gbps Satellite Downlinks in Ka-band

description: No abstract available.
DOI: 10.48577/jpl.xoedzd
title: High Data Rates from the Outer Solar System

description: Outer planet missions play an important role in JPL and NASA’s space exploration objectives in the coming decades. This paper assesses the technical options available for ensuring that the Deep Space Network (DSN) can enable future missions to the outer Solar System and recommend investment options for flight and ground communication systems and technologies that would meet the future data return requirements. The major takeaways are summarized as follow: a) Given the current and near-term state of technology development there are major challenges in operating optical links at outer planet distances (e.g., Sun-Earth angle effects, spacecraft power available for the laser, optical ground network development plans, etc.). b) Due to the spacecraft limitations at outer planet distances, e.g., antenna pointing and solar/Radioisotope Thermoelectric Generator (RTG) power, the ‘biggest bang for the buck’ on enhancing data return is by improving the capabilities of the DSN at Ka-band. c) Concurrently with enhancing DSN capabilities at Ka-band, NASA should encourage the use of Ka-band in missions by actively incentivizing the use of Ka-band on high-rate science downlinks using technologies already available today, while retaining Xband capability for low-rate telemetry, commanding, and emergency support. To improve DSN capabilities at Ka-band, we consider two alternative approaches: 1) operation use of 34-m Beam Waveguide (BWG) arrays, and 2) upgrading the 70-m antennas. For each option, we quantify the expected performance and compare it against known upcoming users. We describe past DSN development and flight demonstrations, summarize the technological advances conducted to-date, and identify additional engineering work required to operationalize the system. We recommend the following: a) For arraying of 34-m BWG at Ka-band, additional demonstration activities are needed to better characterize the system performance under different conditions, including operations in adverse weather conditions or close to a hot body source. b) For upgrading the 70-m antennas, new holography measurements (and panel setting) should be conducted, and operational versions of previously prototyped gravity compensation systems like array feeds and deformable flat plates should be developed and installed. Using these approaches, we expect the DSN downlink performance at Ka-band to improve by 4-6 dB compared to Xband, providing an increase in downlink data rate of 2.5x to 4x.
DOI: 10.15468/dl.n585tg
title: Occurrence Download

description: A dataset containing 3090 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Vespa simillima Smith, 1868",
 "HasGeospatialIssue is false",
 "HasCoordinate is true"
 ]
}

 The dataset includes 3090 records from 37 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0000707-250310093411724/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.48577/jpl.i46yas
title: Comparison of Radioisotope Power Systems to Enablethe Endurance Mission Concept

description: No abstract available.
DOI: 10.48577/jpl.2xn5hb
title: Tuning the Legacy Survey of Space and Time (LSST) Observing Strategy for Solar System Science: Incremental Templates in Year 1

description: The Vera C. Rubin Observatory is due to commence the 10-year \gls*{lsst} at the end of 2025. To detect transient/variable sources and identify \glspl*{sso}, the processing pipelines require templates of the static sky to perform difference imaging. During the first year of the LSST, templates must be generated as the survey progresses, otherwise \glspl*{sso} cannot be discovered nightly. The incremental template generation strategy has not been finalized; therefore, we use the \gls*{maf} and a simulation of the survey cadence (\baselinefull) to explore template generation in Year 1. We have assessed the effects of generating templates over timescales of days-weeks, when at least four images of sufficient quality are available for $\geq90\%$ of the visit. We predict that \gls*{sso} discoveries will begin $\sim$2-3 months after the start of the survey. We find that the ability of the LSST to discover \gls*{sso}s in real-time is reduced in Year 1. This is especially true for detections in areas of the sky that receive fewer visits, such as the \gls*{nes}, and in less commonly used filters, such as the $u$ and $g$-bands. The lack of templates in the \gls*{nes} dominates the loss of real-time \gls*{sso} discoveries; across the whole sky the \gls*{maf} \gls*{mba} discovery metric decreases by up to 63\% compared to the baseline observing strategy, whereas the metric decreases by up to 79\% for \glspl*{mba} in the \gls*{nes} alone.
DOI: 10.48577/jpl.i2vxxm
title: JWST/MIRI Study of the Enigmatic Mid-Infrared Rings in the Planetary Nebula NGC 1514

description: While NGC 1514 is an elliptical, but complex, planetary nebula at optical wavelengths, it was discovered to have a pair of infrared-bright, axisymmetric rings contained within its faint outer shell during the course of the WISE all-sky survey. We have obtained JWST mid-infrared imaging and spectroscopy of the nebula through the use of simultaneous observations with the MIRI Imager and Medium Resolution Spectrometer, selecting the F770W, F1280W, and F2550W filters to match each of the MRS’s three grating positions. These observations show that the rings are clearly resolved and relatively distinct structures, with both filamentary and clumpy detail throughout. There is also cloud-like material that has a turbulent appearance in the interior of the rings, particularly at the longest wavelengths, and faint ejecta-like structures just outside the ring boundaries. Despite their brightness, the emission from the rings within the three imager passbands is shown to be almost entirely thermal emission from very small grains, not line emission from atomic hydrogen or forbidden atomic lines, shocked molecular hydrogen, or PAHs.
DOI: 10.48577/jpl.0gy2gy
title: 810-005 103E; 34-m HEF Subnet Telecommunications Interface

description: No abstract available.
DOI: 10.15468/dl.ezpyq6
title: Occurrence Download

description: A dataset containing 14875 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is one of (Anacardium occidentale L., Anacardium amilcarianum Machado, Anacardium kuhlmannianum Machado, Anacardium microcarpum Ducke, Anacardium othonianum Rizzini, Anacardium rondonianum Machado, Anacardium curatellaefolium A.St.-Hil)"
 ]
}

 The dataset includes 14875 records from 529 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0000705-250310093411724/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.48577/jpl.c0eqjv
title: Accurate, GPU accelerated solar radiation pressure modeling for exo-atmosphere trajectory simulation

description: No abstract available.
DOI: 10.48577/jpl.v0wiaj
title: Spatial attribution of temporal variability in global land-atmosphere CO2 exchange using a model-data integration framework

description: No abstract available.
DOI: 10.48577/jpl.efhav6
title: Dispersive-wave-agile optical frequency division

description: The remarkable frequency stability of resonant systems in the optical domain (optical cavities and atomic transitions) can be harnessed at frequency scales accessible by electronics using optical frequency division. This capability is revolutionizing technologies spanning time keeping to high-performance electrical signal sources. A version of the technique called 2-point optical frequency division (2P-OFD) is proving advantageous for application to high-performance signal sources. In 2P-OFD, an optical cavity anchors two spectral endpoints defined by lines of a frequency comb. The comb need not be self-referenced, which greatly simplifies the system architecture and reduces power requirements. Here, a 2P-OFD microwave signal source is demonstrated with record-low phase noise using a microcomb. Key to this advance is a spectral endpoint defined by a frequency agile singlemode dispersive wave that is emitted by the microcomb soliton. Moreover, the system frequency reference is a compact all-solid-state optical cavity with a record Q-factor. The results advance integrable microcomb-based signal sources into the performance realm of much larger microwave sources.
DOI: 10.48577/jpl.5ggdne
title: Detecting Changes in UHF Relay Communications Data Volume Performance for Mars Surface Rovers

description: No abstract available.
DOI: 10.15468/dl.77zzbc
title: Occurrence Download

description: A dataset containing 6968 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is Spain",
 "TaxonKey is Ophrys speculum Link"
 ]
}

 The dataset includes 6968 records from 77 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0000709-250310093411724/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.48577/jpl.ou6eio
title: The Massive and Distant Clusters of WISE Survey. XII. Exploring X-ray AGN in Dynamically Active Massive Galaxy Clusters at z ∼ 1

description: We present an analysis of the cluster X-ray morphology and active galactic nucleus (AGN) activity in nine z ∼ 1 galaxy clusters from the Massive and Distant Clusters of WISE Survey (MaDCoWS) observed with Chandra. Using photon asymmetry (Aphot) to quantify X-ray morphologies, we find evidence that the four most dynamically disturbed clusters are likely to be mergers. Employing a luminosity cut of 7.6 × 1042 erg/s to identify AGN in the 0.7–7.0 keV, we show that the majority of these clusters host excess AGN compared to the local field. We use the cumulative number-count (log N − log S) model to predict AGN incidence in cluster isophotes under this luminosity cut. Our analysis finds evidence (at &gt; 2σ) of a positive correlation between AGN surface densities and photon asymmetry, suggesting that a disturbed cluster environment plays a pivotal role in regulating AGN triggering. Studying AGN incidence in cluster X-ray isophotes equivalent in area to 1.0r500, we find −0.18 that the AGN space density inversely scales with cluster mass as ∼ M−0.5+0.18 at the 3.18σ level. Finally, when we separately explore the cluster mass dependence of excess AGN surface density in disturbed and relaxed clusters, we see tentative evidence that the two morphologically distinct sub- populations exhibit diverging trends, especially near the outskirts, likely due to cluster merger-driven AGN triggering/suppression.
DOI: 10.48577/jpl.5opels
title: Estimating the Unobserved: Ice Sheet State Estimation

description: No abstract available.
DOI: 10.48577/jpl.gbcokg
title: Near-Earth Object Surveyor Project Progress towards CDR

description: Abstract— The Near-Earth Object Surveyor (NEOS) is completing the detailed design phase of the project for both the instrument and the spacecraft with all flight hardware currently in fabrication and/or testing. NEO Surveyor is designed to detect, categorize and characterize NEOs using infrared imaging. The NEOS project responds to National Research Council’s report Defending Planet Earth: Near-Earth Object Surveys & Hazard Mitigation Strategies (2010), the U. S. National Near-Earth Object Preparedness Strategy and Action Plan (June 2018), and the objectives of NASA’s Planetary Defense Coordination Office (PDCO). The goals of the NEOS project are to: (1) identify impact hazards to the Earth posed by NEOs (both asteroids and comets) by performing a comprehensive survey of the NEO population; (2) obtain detailed physical characterization data for individual objects that are likely to pose an impact hazard; (3) characterize the entire population of potentially hazardous NEOs to inform potential mitigation strategies by assisting the determination of impact energies through accurate object size determination and physical properties. The mission will make significant progress toward the George E. Brown, Jr. NEO Survey Program objective of detecting, tracking, cataloging, and characterizing at least 90% of NEOs equal to or larger than 140 m in diameter. The project is a collaboration between NASA-JPL, the University of California – Los Angeles and industry, with BAE Systems notably providing the spacecraft and key instrument elements. The current status of the hardware build, analyses and testing are discussed at the subsystem and system level. Issues and trades completed and underway are covered. Other key development activities are discussed and put into perspective for the overall project. The paper describes the maturation of the integrated modelling approach being used on NEOS to verify the project margin on meeting the science requirements.
DOI: 10.48577/jpl.xrlfln
title: Application of Model-based Approaches for Earth- Observation Missions

description: No abstract available.
DOI: 10.48577/jpl.3odi4l
title: IEEE 2025 Presentation - Anomalies on the Psyche Mission: Fault Protection Performance and Lessons Learned

description: No abstract available.
DOI: 10.48420/26935324.v1
title: Processed single cell RNA-seq data for manuscript "HAND1 level controls the specification of multipotent cardiac and extraembryonic progenitors from human pluripotent stem cells"

description: Processed single cell RNA-seq (scRNA-seq) data (10xGenomics Flex) and metadata from Lynch et al. The EMBO Journal 2025, https://doi.org/10.1038/s44318-025-00409-0, stored in Loom format. The loom file includes wild-type (WT) and HAND1-null (KO) cells ("colAttrs/condition"). Metadata also includes the day/timepoint of differentiation ("colAttrs/day"), the assigned cell type ("colAttrs/cellType") and the SCENIC regulon AUC scores for each cell ("colAttrs/regulonAUC").
DOI: 10.48577/jpl.igni3s
title: Precision Doppler Measurements from Low-SNR Signals Experiencing Residual Doppler and Acceleration

description: No abstract available.
DOI: 10.48577/jpl.mvcrlj
title: A Comparison of Navigation Methods Enabled by a Deep Space Relay Architecture

description: A deep space relay architecture for communication and navigation was developed in two previous papers. The baseline architecture, consisting of a Mars leading and a Mars trailing relay, was designed to mitigate the Mars conjunction problem for optical communication while enabling deep space trilateration for inner solar system users. An expanded version of the architecture added a Mars halo relay which improved the architecture’s data throughput and navigation potential. This paper further defines the navigation component of the architecture. Previous analysis assumed trilateration with idealized, instantaneous one- and two-way range measurements. Here, more realistic one- and two-way range measurement approaches are developed. A broadcast one-way range measurement mode is developed which offers benefits of user scalability and more timely positioning estimates. A point-to-point measurement mode, compatible with both one- and two-way range measurements, is developed as an alternative to the broadcast mode that levies less demanding time synchronization and antenna sizing requirements on the user. Pseudo-noise code-based ranging approaches compatible with each measurement mode are identified and a link analysis is performed to determine user service volumes and relay hardware requirements. The point-to-point measurement mode is found to be viable for even CubeSat-sized users throughout the inner solar system, while the broadcast measurement mode requires users with antenna diameters on the order of meters. The concept of a “deep space trilateration” algorithm is developed, in which the measurement models incorporate signal propagation time and the motion of users relative to the measurement providing nodes, both of which are non-negligible effects at deep space distances. Position estimation using the deep space trilateration method is simulated in a batch filter. This filter was found to converge even when presented with initial position errors of thousands of kilometers. The accuracy and timeliness of position estimates for a Mars cruise user are found to be on the order of 10 meters and 1 hour respectively, assuming 2-meter range measurement error.
DOI: 10.5281/zenodo.15000851
title: Received Signal Strength Measurements for Below-ground Potato Tuber Biomass Estimation.

description: The dataset contains received signal strength (RSS) measurements from 26 below-ground potato tubers, each placed at 32 positions. Specifically, we use a ZigBee wireless network comprising 16 sensor nodes operating on 16 frequency channels to collect RSS data from tubers of varying dimensions and weights, with each tuber collecting data for 40 seconds at each position. In total, we collect RSS data from 832 tuber-position pairs for deep learning model training and evaluation. More details on tuber weights and file naming conventions can be found in the 'ReadMe.txt' file.
DOI: 10.5281/zenodo.15000852
title: Received Signal Strength Measurements for Below-ground Potato Tuber Biomass Estimation.

description: The dataset contains received signal strength (RSS) measurements from 26 below-ground potato tubers, each placed at 32 positions. Specifically, we use a ZigBee wireless network comprising 16 sensor nodes operating on 16 frequency channels to collect RSS data from tubers of varying dimensions and weights, with each tuber collecting data for 40 seconds at each position. In total, we collect RSS data from 832 tuber-position pairs for deep learning model training and evaluation. More details on tuber weights and file naming conventions can be found in the 'ReadMe.txt' file.
DOI: 10.48577/jpl.mcdbm1
title: The Chopper Next-Generation Mars Rotorcraft: Scaling Ingenuity by a Factor of 20

description: No abstract available.