cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.48577/jpl.5vwsq5
title: EELS: A Modular Snake-like Robot Featuring Active Skin Propulsion, Designed for Extreme Icy Terrains

description: This paper outlines the end-to-end electro-mechanicaldesign of EELS which is a novel modular snake-like robotwith active skin propulsion developed at NASA’s Jet PropulsionLaboratory. The goal of the development is to demonstratevertical mobility in glacier crevasses and moulins whichmotivates the unique design requirements and capabilities ofEELS. The robot is comprised of a proprioception head, tenidentical actuation modules and a power conditioning tail whichis connected to electronics ground support equipment (GSE)that provides power to the robot and houses the control computer.The design of each of these subsystems is motivatedand discussed in detail. The primary focus of this paper isthe actuation system. The actuation system is comprised ofshape actuators, which control the shape of the robot, and screwactuators, which control a multitude of propulsion screws alongthe surface of the robot. The actuation system design is outlinedand experimentally characterized. Detailed component levelanalysis is presented. Implementation challenges related to theunique architecture and their resolutions are outlined. Each ofthe actuation modules houses all the motor control electronics ina self-contained, integrated avionics compartment. Unlike thesnake robots previously introduced in the academic literature,EELS is the first large scale robot (weighing about 83Kg and4.4m in length) which has unparalleled ability to exert largeforces to the environment and support its own weight, thanksto its unique high torque dense shape actuators. The paperconcludes with detailed screw actuation analysis focusing onvertical mobility for EELS.
DOI: 10.48577/jpl.rh4gjz
title: Design and development of Compact Adaptive Optics Instrumentation for Extreme Precision Radial Velocity

description: Adaptive optics systems have played a key role in the direct detection of exoplanets. These instruments have sharpened the image of exoplanet systems by correcting the turbulence due to Earth’s atmosphere – thus enabling starlight suppression and the detection of faint, nearby companions. However, these systems can also enable improvements in indirect methods of planet detection as well. Specifically, adaptive optics can advance radial velocity methods also. This is because adaptive optics systems can dramatically improve the light that gets coupled into single-mode fiber-fed radial velocity spectrographs. The dramatic increase in stability of the resulting image on the final focal plane mitigates optical errors that would make extraction of the radial velocity signature difficult. Here we describe the architecture of a compact adaptive optics system that is designed specifically to couple light into a single-mode optical fiber. The dramatic reduction in size of this instrument is afforded by the reduction in pupil size by MEMs deformable mirrors. Our system also enables fast tip/tilt control as well as atmospheric dispersion correction – necessary for extended sky coverage. The heritage and architecture of this instrument will be described. We will also cover performance modeling, and status of the hardware and software build. We will describe our plans to couple AO systems with spectrometers to enable dramatically increased stability with implications for extreme precision radial velocity needed for the detection of exoEarths.
DOI: 10.48577/jpl.elpt9g
title: Onboard planning and execution of mobility and telecommunications for the Endurance lunar rover

description: The Endurance mission concept requires a lunar rover to traverse thousands of kilometers over a long period of time (hundreds of days), across the South Pole-Aitken Basin on the far side of the Moon. The long duration and distance of this autonomous roving concept will require onboard reasoning capabilities to overcome challenges with limited ground-in-the-loop intervention. To achieve the ambitious mission objectives, uncertainties and anomalies related to the system or the environment state will have to be overcome quickly, with limited ground-in-the-loop interruptions. We describe an architecture and implementation of system-level autonomy software that would enable the required responsive behavior, with particular focus on an onboard activity scheduling and execution capability called MEXEC (Multi-mission EXECutive). Development of this system-level autonomy is driven by a set of scenarios representative of the proposed lunar mission. Our system-level autonomy software will be integrated with behavioral software providing mobility and telecommunications functions, and will be validated through Earth-analogue field testing. This paper will present a brief overview of the Endurance lunar mission concept, the overall architecture of the system-level autonomy, the representative scenarios, the development approach, the innovative features of the MEXEC scheduling and execution capability, and the preliminary results from testing the integrated capabilities.
DOI: 10.48577/jpl.1cq2c3
title: Pyro-atmosphere Infrared Sounder (PIRS) Airborne Demonstration of the CubeSat Infrared Atmospheric Sounder (CIRAS)

description: The NASA Earth Science Technology Office (ESTO) selected the Pyro-atmosphere Infrared Sounder (PIRS) airborne demonstration as part of its FireTech program in May of 2023. Upon completion, the PIRS will be flown in an aircraft to measure temperature and water vapor profiles, and total column carbon monoxide, above and in the vicinity of wildfires to support fire prediction and suppression efforts and scientific investigations of the meteorology of wildfires. The PIRS incorporates a wide field all refractive grating spectrometer operating in the MWIR region of the spectrum with 640 spectral channels from 4.08-5.13μm. The PIRS optics assembly was developed by BAE SYSTEMS for the CubeSat Infrared Atmospheric Sounder (CIRAS) project, as part of an earlier NASA and NOAA technology maturation program in support of reducing the size of infrared sounding instruments for space applications. Through the PIRS airborne flight development and demonstration, the full performance capabilities of the CIRAS instrument will have been demonstrated and build confidence in the performance expected from a future CIRAS spaceflight mission.
DOI: 10.48577/jpl.pt3deq
title: Optical and opto-mechanical design of spectrometers for PRIMA

description: The PRobe Infrared Mission for Astrophysics (PRIMA) will be a multi-mode, cryogenic, far-infrared space-based observatory consisting of a 1.8 meter collecting telescope followed by multiple spectrometer and imager instruments. There is a Fourier Transform Module (FTM) that is optionally inserted between the telescope and Far-Infrared Enhanced Survey Spectrometer (FIRESS), which consists of an objective group that receives the collimated beam from the scan mirror and creates a focus at the slit for all spectrometers. A total of four spectrometers, working in different spectral bands, disperse the light and create a focus at FPAs. Most commonly, imaging spectrometers work at 1:1 magnification between slit and FPA, but in PRIMA the magnification of the four spectrometers ranges from 0.6x to 1.8x. The non-unity magnification led to a configuration trade for the spectrometer optics, and required the use of low-order Zernike aspheres (freeform surfaces) to achieve the requirements on wavefront error, keystone error, and smile. This paper describes the requirements, configuration trade and development, preliminary optical design, and performance analysis of FIRESS.
DOI: 10.48577/jpl.iseowc
title: In-flight characterization of the nonlinearity and instrumental noise of the AIRS

description: The Atmospheric Infrared Sounder (AIRS) was launched on May 4, 2002 on the NASA Earth Observing System (EOS) Aqua spacecraft. AIRS measures the hyperspectral upwelling spectral radiance of the Earth in the infrared from 3.7-15.4μm in 2378 channels. Instrument raw digital counts are converted to radiances using a hybrid physical, empirical approach that maintains high measurement accuracy with SI traceability. Before launch, a comprehensive On-board Calibration Plan was developed that configures the AIRS instrument into certain modes that enable characterization and/or validation of various performance parameters. Ten of the eleven on-board tests have been performed on-orbit with varying frequencies. This paper addresses three of the tests that focus on the radiometric performance of the instrument including instrumental gain and noise, non-linearity, non-Gaussian noise and stray light effects on the On-Board Calibrator (OBC) Blackbody and Space View (SV), respectively. The Guard Test, C1, uploads A only and B only detector redundancy gain tables that allow characterization of the noise and gain in normal operational mode. The Space View Noise Test, C8, stops the scan mirror while AIRS views space, providing a long, continuous, measurement of a cold target for characterization of instrumental noise and drift. The OBC Float Test, C5, turns off the OBC blackbody to provide a range of observational temperatures to the instrument for calibration of the nonlinearity. All tests show excellent stability of the instrument response, albeit regular non-automated adjustments to the detector redundancy has been required throughout the mission due to normal instrumental aging and radiation hits. Despite the changes, the AIRS Calibration Team has managed to maintain the number of active channels to the values experienced shortly after launch for the life of the mission.
DOI: 10.48577/jpl.gwncfk
title: Absolute and Differential Complex E Field Reconstruction by Phase Shifting Interferometry

description: The Habitable Worlds Observatory is expected to carry a coronagraph instrument capable of direct imaging of Earth-like exoplanets in the habitable zone of distant stars. Such an instrument requires stability of its wavefront to a few picometers RMS in phase, and ≪ 1% in amplitude over one observational cycle of approximately 12 hours. These tight requirements demand an adaptive optics system with extreme long term internal stability. In this paper, we show how phase shifting interferometry helps enable this long term stability by suppressing sources of 1/f noise while also providing measurement of both the phase and amplitude of the beam. Additionally, we show how a new type of noncommon path interferometer with a photonic phase shifter enables inclusion of this type of modulation into existing coronagraph layouts.
DOI: 10.48577/jpl.ovur0p
title: Imaging spectroscopy-based estimation of aboveground biomass in Louisiana’s coastal wetlands: Towards consistent spectroscopic retrievals across atmospheric states

description: No abstract available.
DOI: 10.15468/dl.rqj9e7
title: Occurrence Download

description: A dataset containing 54829 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Muscardinus avellanarius (Linnaeus, 1758)",
 "HasCoordinate is true",
 "Year is greater than or equal to 2011",
 "Year is less than or equal to 2024"
 ]
}

 The dataset includes 54829 records from 243 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0111389-240626123714530/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.48577/jpl.ox4suq
title: Physics-Informed Machine Learning Towards A Real-Time Spacecraft Thermal Simulator

description: Modeling thermal states for complex space missions, such as the surface exploration of airless bodies, requires high computation, whether used in ground-based analysis for spacecraft design or during onboard reasoning for autonomous operations. For example, a finite-element-method (FEM) thermal model with hundreds of elements can take significant time to simulate on a typical workstation, which makes it unsuitable for onboard reasoning during time-sensitive scenarios such as descent and landing, proximity operations, or in-space assembly. Further, the lack of fast and accurate thermal modeling drives thermal designs to be more conservative and leads to spacecraft with larger mass and higher power budgets. The emerging paradigm of physics-informed machine learning (PIML) presents a class of hybrid modeling architectures that address this challenge by combining simplified physics models (e.g., analytical, reduced-order, and coarse mesh models) with sample-based machine learning (ML) models (e.g., deep neural networks and Gaussian processes) resulting in models which maintain both interpretability and robustness. Such techniques enable designs with reduced mass and power through onboard thermal-state estimation and control and may lead to improved onboard handling of off-nominal states, including unplanned down-time (e.g. GOES-7 \cite{bedingfield1996spacecraft}, and M2020) The PIML model or hybrid model presented here consists of a neural network which predicts reduced nodalizations (distribution and size of coarse finite difference mesh) given on-orbit thermal load conditions, and subsequently a (relatively coarse) finite-difference model operates on this mesh to predict thermal states. We compare the computational performance and accuracy of the hybrid model to a purely data-driven neural net model, and a high-fidelity finite-difference model (on a fine mesh) of a prototype Earth-orbiting small spacecraft. The PIML based active nodalization approach provides significantly better generalization than the neural net model and coarse mesh model, while reducing computing cost by up to 1.7 $\times$ compared to the high-fidelity model.
DOI: 10.15468/dl.qe3aq7
title: Occurrence Download

description: A dataset containing 8951 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Tectona grandis L.f.)",
 "HasCoordinate is true",
 "HasGeospatialIssue is false"
 ]
}

 The dataset includes 8951 records from 235 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0111390-240626123714530/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.48577/jpl.z0phxx
title: Single Event Effects Testing for Integrated GaN Power Devices

description: GaN FETs can provide higher switching rates which can lead to smaller, lighter, faster and more responsive circuits; however, historically, GaN FETs have been considered too difficult to drive and many GaN parts have shown lower reliability compared to Si FETs. This has resulted in a limited number of GaN devices thoroughly tested for use in space environments. These drawbacks have meant that, when designing for space applications, most engineers have relied on MOSFETs. Two recent innovations have caused GaN FETs to be more attractive to designers: 1) process improvements that have increased reliability and 2) driver and FET integration that has reduced design complexities. With the reliability and design complexity concerns addressed, it has become pertinent to give GaN technology a closer look. To find out if a shift towards GaN technology is feasible for space applications, Single Event Effects Testing can give insight into how these devices will perform in higher radiation environments. To this end, four CoTS parts were taken to the 88-Inch Cyclotron at Lawrence Berkely National Laboratory in July 2023 and tested for their susceptibility to single event gate rupture, latch-up and burnout. The data from testing is presented and analysis of data is given. Recommendations for further testing of similar integrated devices are provided.
DOI: 10.15468/dl.u7epcp
title: Occurrence Download

description: A dataset containing 524 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Hippocampus mohnikei Bleeker, 1853"
 ]
}

 The dataset includes 524 records from 31 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0111391-240626123714530/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.48577/jpl.h6s5af
title: OCO-2/3 Calibration Report

description: No abstract available.
DOI: 10.48577/jpl.tofv8s
title: Primordial Atmospheres of exoplanets: (sub-)Neptune opportunities and implications for formation and evolution mechanisms

description: No abstract available.
DOI: 10.48577/jpl.hsvwfk
title: NASA Deep Space Network Support During Artemis I Mission Operations

description: No abstract available.
DOI: 10.48577/jpl.bl6sv2
title: The K-band (24 GHz) Celestial Reference Frame: Current Status and Roadmap

description: No abstract available.
DOI: 10.48577/jpl.yfvkyo
title: Near-Real-Time Anomaly Detection in Total Electron Content for the GUARDIAN Ionospheric Monitor

description: No abstract available.
DOI: 10.15468/dl.62zgj9
title: Occurrence Download

description: A dataset containing 19113 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Zamenis longissimus (Laurenti, 1768)",
 "HasCoordinate is true",
 "Year is greater than or equal to 2011",
 "Year is less than or equal to 2024"
 ]
}

 The dataset includes 19113 records from 609 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0111393-240626123714530/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25549/whit-c170-6186
title: Photograph of photograph of a roof tile, Simons Brick Co., Southern California, 1928

description: Photograph of photograph of a roof tile, Simons Brick Co., Southern California, 1928. "Subject: Copy of tile; Agency: Philip J. Meany; Client: Simons Brick Co.; Number of Prints: 1; Size: contact; Finish: gl[ossy]; Year: 1928; Job: 2-15-47" -- on envelope.
DOI: 10.15468/dl.rhwlgk
title: Occurrence Download

description: A dataset containing 11064187 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Fungi"
 ]
}

 The dataset includes 11064187 records from 1017 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0074378-160910150852091/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25549/whit-c170-63675
title: Christmas articles, Southern California, 1933

description: 11 photographs of furniture, Southern California, 1933. "Subject: Xmas articles, See also 8x10 neg[ative]; Client: Bullock's; Job: 10-26-100A; Year: 1933; Original print order: 1 ea[ch]; Size: contact; Finish: gl[ossy]" -- on envelope front. "Original photographs- At studio: 12, to size @ 4.00; Original photographs- Size, 28, to size @ 2.50, 12, 2.50, 28, 20.00, 50.0; Negative Blocking: 4 neg[ative]; Amount: 48.00, 70.00, 2.00" -- on envelope back.
DOI: 10.15468/dl.zffjhn
title: Occurrence Download

description: A dataset containing 2505 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Necromys lasiurus (Lund, 1841)"
 ]
}

 The dataset includes 2505 records from 29 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0074380-160910150852091/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25549/whittington-ouc12217990
title: Xmas, Los Angeles, Calif., 1940

description: 14 photographs of Christmas merchandise for Bullocks, Los Angeles, CA, 1940. "Subject: X[Christ]mas." "Client: Bullocks; Original print order: 1 ea[ch]; Size: contact; Finish: gl[ossy]; Re-order: 1 #101; Size: contact; Finish: gl[ossy]; Year: 1940; Job: 010-26-207" -- on envelope front. "Still life 14" -- on envelope back.
DOI: 10.25549/whit-c170-82714
title: Timpé players, Southern California, 1936

description: 3 photographs of timpé players, Southern California, 1936. "Subject: Timpé players; COD; Client: Jack Schaefer Inc. 730 So[uth] Grand; Original Print Order: 1 ea[ch]; Size: 8x10; Finish: gl[ossy]; Job: 5-20-126; Year: 1936" -- on envelope front. "Jack Shaefer, Inc., Manufacturers Representative and Importer, Sporting Goods; 730 So. Grand Ave., Los Angeles, Calif., TUcker 8802; 420 Market St., San Francisco, Calif. SUtter 8854" -- on business card. "Operator's Report Name: Howard; 3 Original Photographs--Size: 8x10; Amount: 12.00" -- on envelope back.
DOI: 10.15468/dl.z4wgyk
title: Occurrence Download

description: A dataset containing 1194 species occurrences available in GBIF matching the query:
{
 "and" : [
 {
 "or" : [
 "TaxonKey is Zygodontomys pixuna Moojen, 1943",
 "TaxonKey is Necromys lasiurus (Lund, 1841)",
 "TaxonKey is Bolomys lasiurus (Lund, 1841)"
 ]
 },
 "Country is Brazil"
 ]
}

 The dataset includes 1194 records from 18 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0074385-160910150852091/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25549/whittington-ouc12217988
title: Xmas, Los Angeles, Calif., 1940

description: 6 photographs of Bullocks Christmas merchandise, Los Angeles, CA, 1940. "X[Christ]mas." "Client: Bullocks; Original print order: 1 ea[ch]; Size: contact; Finish: gl[ossy]; 1 #91 gl[ossy]; enlarge sheet to 5-1/4 inches long - center of 8x10; Year: 1940; Job: 010-25-199" -- on envelope front. "Still life 6" -- on envelope back.
DOI: 10.15468/dl.a4eiaw
title: Occurrence Download

description: A dataset containing 83761 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is France",
 "HasCoordinate is false",
 "TaxonKey is Insecta"
 ]
}

 The dataset includes 83761 records from 176 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0074407-160910150852091/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25549/whit-c170-62983
title: Chef at Sardis, Southern California, 1934

description: 2 photographs of chef cooking, Southern California, 1934. "Subject: Chef at Sardis; Agency: J. Walter Thompson; Client: Swift & Co.; Original Print Order: 1 ea[ch]; SIze: 8x10; Finish: gl[ossy]; Re-order: 5#1, 1#2; Year: 1934; Job: 10-5-34" -- on envelope front. "Operator's Report Name: Joe; 2 Original Photographs-Size: 8x10; Amount: 5.50" -- on envelope back.
DOI: 10.25549/whit-c170-16123
title: Boxes, Hollywood Paper Box Co., Southern California, 1930

description: 20 photographs of boxes, Hollywood Paper Box Co., Southern California, 1930. "Subject: Boxes (assorted for folder); Agency: Lockwood Shackleford Co.; Client: Hollywood Paper Box Co.; Original print order: 1 ea[ch]; Size: 8x10; Finish: buff; Mount: smooth; Re-order: 1 ea[ch], 1#5, 9 ea[ch] except #19, 1#19, 1#20; Size: 8x10; Finish: gl[ossy], buff; Mount: linen 8", for composit[sic]; Year: 1930; Job: 1-4-28" -- on envelope front. "Extra charges: Mr. Shackleford; Original photographs-At Studio: 19 at 2.00, 38.00" -- on envelope back.
DOI: 10.15468/dl.ubckk4
title: Occurrence Download

description: A dataset containing 1537 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Numenius americanus Bechstein, 1812",
 "Geometry POLYGON((-120 36,-120 34.5,-118 34.5,-118 36,-120 36))"
 ]
}

 The dataset includes 1537 records from 5 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0074390-160910150852091/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25549/whit-c170-103578
title: Union Depot celebration, Los Angeles, Calif., 1939

description: 10 photographs of historical vehicles in the parade along the rails celebrating the opening of the Union Station Los Angeles, Los Angeles, California, 1939 May 3. These include a hay wagon, a covered wagon, and a carriage, with horses pulling them. There are also pedestrians in costume and men riding horses singly. Editor's note: the photographer’s job number does not indicate a day for 1939 May.