cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.48577/jpl.uhgyrr
title: Mars 2020 Mission Biological Return Sample Contamination Control Approach and Verification

description: The Mars 2020 Perseverance rover is equipped with a Sample Caching System (SCS) designed to collect and cache Martian core and regolith samples for potential return to Earth. To ensure the integrity of these samples, the mission requirements for each encapsulated sample for return is less than one Earth-sourced viable organism (VO) and more than a 99.9% probability of being free of any Earth-sourced VO. To satisfy the stringent biological contamination requirements in support of return sample science (RSS) investigations, special bioburden mitigation and reduction approaches were developed and implemented for SCS hardware that would directly contact or be in close proximity to the Martian samples. Here, we describe the implemented approaches for microbiological contamination reduction and mitigation, detail the processes of the SCS aseptic assembly, and report the estimated VO for each returned sample. We found that our conservative estimate (CE) of the computed probability of a single VO in the returned sample is more than one order of magnitude lower than the biological contamination requirement while the best estimate (BE) exceeds two orders of magnitude.
DOI: 10.48577/jpl.9lcojf
title: Global soil moisture estimates: do SMAP retrievals achieve the accuracy of model reanalysis?

description: A number of global surface soil moisture (SM) products have been derived from the L-band frequency Soil Moisture Active Passive (SMAP) and the Soil Moisture and Ocean Salinity (SMOS) missions to study the terrestrial water, energy, and carbon cycles. This letter presents the performance of the recently developed 9 km SMAP product (hereafter SMAP-INRAE-BORDEAUX, SMAP-IB9) at the global scale. The product was retrieved from the 9 km dual-channel SMAP radiometric products using the forward model of SMOS INRA-CESBIO (SMOS-IC) and of the official SMOS retrieval algorithms – L-MEB (L-band Microwave Emission of the Biosphere) model. We inter-compared the SMAP-IB9 retrievals with two other products with a similar grid resolution (~10 km): the SMAP Enhanced Level-3 data set (hereafter SMAP-L3) and the land component of the fifth generation of European Reanalysis (ERA5-Land) with the main objective of assessing the difference in accuracy between remotely sensed and model-based SM products. We found that the ERA5-Land and SMAP-IB9 SM products had the overall highest correlations (R = 0.62(±0.16) for ERA5-Land vs. 0.62(±0.15) for SMAP-IB9 and 0.54(±0.15) for SMAP-L3) when compared with in-situ measurements. ERA5-Land showed better performances in the forest areas where SMAP-IB9 and SMAP-L3 still showed high potential in catching the temporal variations of the in-situ measurements, particularly in terms of median correlation values (0.65(±0.17) for SMAP-IB9 vs. 0.69(±0.15) for ERA5-and). Besides, it is interesting to note that, using ISMN as a reference, the difference in R between remote sensing and model-based SM products that existed in the past has decreased to statistically insignificant levels over time. For instance, in the non-forest areas, we found that the latest versions of the SMAP SM products (SMAP-L3 and SMAP-IB9) had relatively comparable performances with ERA5-Land in terms of median ubRMSE (0.06(±0.02) m3/m3 for SMAP-L3 and ERA5-Land) and R (0.60(±0.16) for SMAP-IB9 vs. R (0.60(±0.15) for ERA5-Land), respectively.
DOI: 10.48577/jpl.wmjf5q
title: A53 SEE Performance in Raspberry Pi and MX8M

description: We report SEE performance of A53 processors in Raspberry Pi 3B+ (BCM2837) and MYiRTech MYC-C8MMQ6 (IMX8M). Error correction features and process SEE performance result in significant reduction in SEFI sensitivity.
DOI: 10.48577/jpl.gcis1g
title: ORBIT DETERMINATION PERFORMANCE OF THE GANYMEDE FLYBYS BY THE JUNO SPACECRAFT

description: On June 7, 2021 the Juno spacecraft zoomed past Ganymede at an altitude of ∼1,050 km, the first of four targeted “close” flybys of a Galilean moon along the newly accepted extended mission (EM) reference trajectory. While monitoring the real-time Doppler residuals during the flyby, the orbit determination (OD) team was surprised to see an anomalous signature in the data surrounding the time of closest approach. This paper will detail the OD team’s preparation for the flyby, a first-time event for the Juno mission, and the subsequent analyses to understand the anomaly. We will also investigate the flyby performance of the subsequent untargeted distant Ganymede flyby on July 20, 2021.
DOI: 10.48577/jpl.wugqc7
title: Hindsight is 20/20: A Retrospective on Applying Interactive Visualization to Mission Design Navigation

description: Many challenges within Mission Design and Navigation benefit from the application of interactive visualizations to aid human operators. Chief benefits include intuitive presentation of complex information, a reduced cycle time between question and answer, and lowering barriers to communication, especially with non-experts. In this work, we provide a retrospective look at the implementation of several visualization prototypes tailored to selected MDNav analysis tasks. We also discuss lessons learned in adapting visual design and analysis approaches to the field of astrodynamics.
DOI: 10.48577/jpl.yyqg8e
title: AIRS polarization and radiometric calibration update using data from the Aqua Deep Space Maneuver

description: The Atmospheric Infrared Sounder (AIRS) on the EOS Aqua Spacecraft acquires hyperspectral infrared radiances in 2378 channels ranging in wavelength from 3.7-15.4 um with spectral resolution of better than 1200, and spatial resolution of 13.5 km with global daily coverage. The AIRS was designed to measure temperature and water vapor profiles for improvement in weather forecast and improved parameterization of climate processes. Coupling of the polarization emitted from the AIRS scan mirror and the polarization of the spectrometer introduces a scan dependent modulation of the instrument radiometric response. Measurements of the polarization pre-flight were used to determine the current calibration coefficients in Version 5. A Deep Space Maneuver (DSM) of the Aqua Spacecraft, which was performed on September 23, 2021, provides a unique measurement of the radiometric modulation that we can use to derive a new set of polarization parameters for the system. The test involves pitching the Aqua spacecraft in the form of a ‘back flip’ that enables the AIRS instrument (and other instruments on the spacecraft) to view cold space in the Earth view for all scan angles for a good portion of the maneuver. The observed modulation of the data while viewing space is a direct measurement of the mirror polarized emission. The polarization coefficients derived from the maneuver are expected to improve left/right asymmetries and reduce radiometric errors in cold scenes. This paper will summarize the methodologies used, and compare the new polarization parameters to those derived pre-flight and in-orbit using space views.
DOI: 10.48577/jpl.8gb5bx
title: STOCHASTIC SEQUENTIAL CONVEX PROGRAMMING FOR ROBUST LOW-THRUST TRAJECTORY DESIGN UNDER UNCERTAINTY

description: Any space trajectories are subject to state uncertainty due to imperfect state knowledge, random disturbances, and partially known dynamical environments. Ideally, such uncertainty and associated risks must be properly quantified and taken into account in the mission design process to ensure a sufficiently low risk of causing hazardous events. However, designing robust trajectories with such low risk guarantees adds an additional dimension, stochasticity, to space trajectory optimization problems, making it one of the most challenging problems in space mission design. To address the challenge, this study develops a framework that designs robust low-thrust trajectories under uncertainty by combining stochastic optimal control, sequential convex programming, and the augmented Lagrangian method, thereby termed Stochastic Sequential Convex Programming. The developed framework incorporates the stochastic effects of orbit determination and control execution errors into the mission design process, enabling mission designers to concurrently design a reference trajectory and flight-path control plan while satisfying mission constraints in the presence of uncertainty.
DOI: 10.48577/jpl.mqhrva
title: Analyses of Blue Origin Blue Moon Lunar Landing Descent Engine Plume Effects

description: Powered landings onto airless bodies like the Moon generate rarefied gas dynamic environments composed of engine plume flows and surface materials including entrained dusts. These induced atmospheres can cause harmful degradations of spacecraft performance. In particular, lunar dust can cause severe operational problems for human and cargo landing systems, astronauts, and deployed scientific observatories as was observed during the Apollo program. The need to understand and quantify the effects of plume-surface interactions during powered landings onto airless bodies has motivated the development of physics-based modeling approaches at NASA’s Jet Propulsion Laboratory. JPL incorporates inputs from Blue Origin and literature surveys of lunar regolith and applies computational fluid dynamics, direct simulation Monte Carlo, and Lagrangian particle-tracing simulation methodologies to model the plume exhaust flow fields generated by the Blue Moon descent engines during the final meters of landing, as well as the effects of that plume flow in eroding, entraining, and transporting lunar regolith to the descent element. The effects of dust deposition onto thermal control system radiators are of primary interest in this work, but other detrimental effects can include deposition onto landing sensors and optical systems during and after landing; damage induced by dust impact or subsequent abrasion within exposed lander cavities; and the performance degradation of solar arrays and scientific payload instruments. Plume interactions will also result in lunar dust clouds which may obscure visibility during landing, and produce damage to surfaces downstream of entrainment through mechanical erosion.
DOI: 10.6084/m9.figshare.23849262
title: dengue_shock1

description: risk factors for dengue shock
DOI: 10.6084/m9.figshare.23849262.v1
title: dengue_shock1

description: risk factors for dengue shock
DOI: 10.48577/jpl.tufsbo
title: Characterization of Multilayer Piezoelectric Stacks down to 100 K for Surface Parallel Mirror Actuation

description: No abstract available.
DOI: 10.48577/jpl.htnr4e
title: ExEP: Advancing Deformable Mirror Controllers for Exoplanet Imaging

description: No abstract available.
DOI: 10.48577/jpl.bfqs9q
title: Application of an end-to-end Bayesian Statistical Framework for Performing Bioburden Accounting on the InSight Mission

description: No abstract available.
DOI: 10.48577/jpl.s4lpeu
title: HAMSR overview

description: No abstract available.
DOI: 10.48577/jpl.zfhzec
title: Modeling of Recovery Efficiency of Sampling Devices used in Planetary Protection Bioburden Estimation

description: No abstract available.
DOI: 10.48577/jpl.v56hxn
title: Time Variable Venus Atmospheric Structure via Crosslinks with Low-Cost VASCO Mission Concept

description: No abstract available.
DOI: 10.48577/jpl.o8kq4b
title: Microbial bioburden and species distribution aboard the ISS over time and benefits of a whole-genome sequencing approach

description: No abstract available.
DOI: 10.48577/jpl.nzybnk
title: Status of Small Satellite Developments at the Jet Propulsion Laboratory

description: No abstract available.
DOI: 10.48577/jpl.fobz2j
title: Roman Coronagraph Instrument: Engineering Overview and Status

description: No abstract available.
DOI: 10.48577/jpl.bki89g
title: Development of Low Temperature Lithium-ion Batteries for NASA Missions

description: No abstract available.
DOI: 10.48577/jpl.4m2vba
title: Optimizing silicon UV detector response with antireflection coatings, solar-blind bandpass filters and linear variable filters

description: No abstract available.
DOI: 10.48577/jpl.nz4x2x
title: The Asteroid Impact Hazard and Planetary Defense

description: No abstract available.
DOI: 10.48577/jpl.dsisbb
title: Seasonal variability of ocean circulation on the northwestern Greenland shelf

description: No abstract available.
DOI: 10.48577/jpl.oatdfd
title: VIPR instrument status

description: No abstract available.
DOI: 10.48577/jpl.rpv4u9
title: Air Quality Impacts of Aerosol Atmospheric Rivers

description: No abstract available.
DOI: 10.48577/jpl.ioxn9t
title: Exoplanets atmospheres: evolution and habitability

description: No abstract available.
DOI: 10.48577/jpl.ud7fdd
title: Imaging and Structure Analysis of ICRF sources at X and K-band

description: No abstract available.
DOI: 10.48577/jpl.y1ijtf
title: ECOSTRESS Science and Applications Highlights

description: No abstract available.
DOI: 10.48577/jpl.bl2xrq
title: Current Celestial Reference Frame Status at X/S and K Bands

description: No abstract available.
DOI: 10.48577/jpl.dx5in3
title: 400 Sols on Mars with SHERLOC

description: No abstract available.
DOI: 10.48577/jpl.2cwvnz
title: Physics of 2D-doped surfaces, stability and strong passivation of back-illuminated scientific detectors

description: No abstract available.
DOI: 10.48577/jpl.ymlbra
title: Analyses of Blue Origin Blue Moon Lunar Landing Descent Engine Plume Effects

description: No abstract available.
DOI: 10.48577/jpl.7majnl
title: Early Design Exploration of Space System Scenarios Using Assume-Guarantee Contracts

description: No abstract available.
DOI: 10.6084/m9.figshare.23829600
title: The Raw Data of "<b>A sequencing of human keratinocyte exosomes-derived microRNAs and target genes analysis : the inhibitory effect of cimifugin on atopic dermatitis</b>"

description: The project contains raw data from all images provided in the research paper.
DOI: 10.6084/m9.figshare.23829600.v1
title: The Raw Data of "<b>A sequencing of human keratinocyte exosomes-derived microRNAs and target genes analysis : the inhibitory effect of cimifugin on atopic dermatitis</b>"

description: The project contains raw data from all images provided in the research paper.
DOI: 10.6084/m9.figshare.23615136.v2
title: Economic data for the WECC and NPCC electricity markets

description: This repository includes relevent economic data for the Western Electricity Coordinating Council (WECC) and Northeast Power Coordinating Council (NPCC) systems, developed by the research team of Dr. Fangxing Fran Li at The University of Tennessee and his PhD student Qiwei Zhang during 2021-2022. This data set will be of interest to you if you conduct electricity economic simulation studies, such as economic dispatch and LMP calculation. We provide a comprehensive economic data set for WECC and NPCC systems based on real-world grid operational data. Users can access the developed data set for generator aggregation, fuel cost, generator capacity, and line rating. This dataset can be found at Github as well. See https://github.com/enliten/ENLITEN-Grid-Econ-Data/.
DOI: 10.5281/zenodo.8213360
title: Surface rupture data associated with the 2020 Mw 6.6 Masbate earthquake, Philippines

description: The dataset comprises vector files depicting the delineated surface rupture associated with the 2020 Mw 6.6 Masbate earthquake, along with field measurements recorded in a spreadsheet. Mapping of the surface rupture was conducted using ground and drone surveys. The field measurements, taken with tape measures, were supplemented with measurements derived from drone orthophotos.
DOI: 10.48577/jpl.5ghkfk
title: The Importance of Hyperspectral Soil Albedo Information for Improving Earth System Model Projections

description: Earth system models (ESMs) typically simplify the representation of land surface spectral albedo to two values, which correspond to the photosynthetically active radiation (PAR, 400–700 nm) and the near infrared (NIR, 700–2500 nm) spectral bands. However, the availability of hyperspectral observations now allows for a more direct retrieval of ecological parameters and reduction of uncertainty in surface reflectance. To investigate sensitivity and quantify biases of incorporating hyperspectral albedo information into ESMs, we examine how shortwave soil albedo affects surface radiative forcing and simulations of the carbon and water cycles. Results reveal that the use of two broadband values to represent soil albedo can introduce systematic radiative-forcing differences compared to a hyperspectral representation. Specifically, we estimate soil albedo biases of  0.2 over desert areas, which can result in spectrally integrated radiative forcing divergences of up to 30 W m−2, primarily due to discrepancies in the blue (404–504 nm) and far-red (702–747 nm) regions. Furthermore, coupled land-atmosphere simulations indicate a significant difference in net solar flux at the top of the atmosphere (&gt; 3.3 W m−2), which can impact global energy fluxes, rainfall, temperature, and photosynthesis. Finally, simulations show that considering the hyperspectrally resolved soil reflectance leads to increased maximum daily temperatures under current and future CO2 concentrations.
DOI: 10.48577/jpl.ergt7j
title: Biogeographic pattern of living vegetation carbon turnover time in mature forests across continents

description: Aim: Theoretically, woody biomass turnover time (τ) quantified using outflux (i.e., tree mortality) predicts biomass dynamics better using influx (i.e., productivity). This study aims at using forest inventory data to empirically test whether woody τ estimated using outflux is a better predictor of biomass dynamics and generate a spatially explicit understanding of woody τ in mature forests. Location: Continents Time period: Historic from 1951 to 2018 Major taxa studied: Trees and Forests Methods: We compared the approaches of using outflux vs. influx for estimating woody τ and predicting biomass accumulation rates. We investigated abiotic and biotic drivers of spatial woody τ and generated a spatially explicit map of woody τ at a 0.25-degree resolution across continents using machine learning. We further examined whether the six dynamic global vegetation models (DGVMs) and the data assimilated product generally captured the observational pattern of woody τ. Results: Woody τ quantified by the outflux approach more accurately predicted the biomass accumulation rates, thus empirically demonstrating the validity of this approach. We found large spatial variations of woody τ for mature forests, with highest values in temperate forests (98.8 ± 2.6 y) followed by boreal forests (in North America), and then tropical forests. The map of woody τ extrapolated from plot data showed higher values in wetter eastern and pacific coast USA, Africa and eastern Amazon. Climate (temperature and aridity index) and vegetation structure (tree density, competition and forest age) were the dominant drivers of woody τ across continents. The highest woody τ in temperate forests were not captured by either DGVMs or the data assimilated product.
DOI: 10.48577/jpl.q8t3zh
title: Proton Radiation Effect on Barrier Infrared Detector Focal Plane Arrays

description: This work reports effect of proton radiation on barrier infrared detector with cutoff wavelength of 10.5 and 12.2 m. The results indicate that proton radiation causes slow increase in dark current of the barrier infrared detector. The radiation effect on quantum efficiency of detector is not conclusive. However, the increase in dark current and decrease in quantum efficiency is slow and within acceptable level for an Earth orbit space mission.
DOI: 10.48577/jpl.go4vfr
title: PlanetProfile: Self-consistent interior structure modeling for terrestrial bodies in Python

description: The open-source PlanetProfile framework was developed to facilitate investigation of the interior structure of icy moons based on self-consistency and comparative planetology. The software, originally written in Matlab, relates observed and measured properties, assumptions such as the type of materials present, and laboratory equation-of-state data through geophysical and thermodynamic models to evaluate radial profiles of mechanical, thermodynamic, and electrical properties, as self-consistently as possible. We have created a Python version of PlanetProfile. In the process, we have made optimization improvements large and small and built in parallelization and parameter-space search features to take advantage of fast operation for investigating unresolved questions in planetary geophysics, in which many model inputs are poorly constrained. The new Python version links to a variety of other scientific software packages, including for evaluating equation-of-state data, magnetic induction calculations, seismic calculations, and spacecraft data analysis. Geophysical and thermodynamic models implemented in PlanetProfile have been reconfigured so as to improve self-consistency and generate the most realistic relationships between depth, pressure, temperature, density, electrical conductivity, etc. Here, we describe the software design and algorithms in detail, summarize model inputs and outputs for major moons across the outer solar system, and discuss new inferences about the interior structure of several bodies. Chiefly, the high values and narrow uncertainty ranges reported for the axial moments of inertia for Callisto, Titan, and Io are difficult to reconcile with self-consistent models, requiring highly porous rock layers that are equivalent to incomplete differentiation for Callisto and Titan, and a high rock melt fraction for Io. This difficult matching, which may imply the bodies are not in hydrostatic equilibrium, is even more pronounced with the more realistic models in the new Python version. Radial profiles for each model are provided as a Zenodo archive.
DOI: 10.48577/jpl.7fjagq
title: Attribution of individual methane and carbon dioxide emission sources using 5 EMIT observations from space

description: Carbon dioxide and methane emissions are the two primary anthropogenic climate-forcing agents and an important source of uncertainty in the global carbon budget. Uncertainties are further magnified when emissions occur at fine spatial scales (&lt;1 km), making attribution challenging. We present the first observations from NASA’s Earth Surface Mineral Dust Source Investigation (EMIT) imaging spectrometer showing quantification and attribution of fine-scale methane (0.3-73 t CH4 hr-1) and carbon dioxide sources (1571-3511 t CO2 hr-1 35 ) spanning the oil & gas, waste, and energy sectors. For selected countries observed during the first 30 days of EMIT operations, methane emissions varied significantly at a regional scale with the largest total emissions observed for Turkmenistan (731±148 t CH4 hr-1 38 ). These results highlight the contributions of current and planned point source imagers in closing global carbon budgets.
DOI: 10.48577/jpl.vab4j0
title: CFD Modeling Analysis of a Martian Rotorcraft with Individual Blade Control

description: Computational fluid dynamics (CFD) analysis was conducted on a proposed blade root-actuated Individual Blade Control (IBC) system for future Martian rotorcraft. IBC offers many potential benefits to rotary-winged exploration of Mars, including precision control of rotor blade forces. This study seeks to provide an estimate of rotor blade force and system power as a basis for concept feasibility analysis and experimental prototyping. ANSYS Fluent was used to compute blade pitching moment, lift, and drag under various feathering waveforms, amplitudes, biases, and frequencies. It is determined that the rapid feathering characteristic of IBC has a non-negligible impact on blade forces. It is also found that actuators with power ratings on the order of 101 W are likely sufficient for blade actuation on Martian rotorcraft.