cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.48577/jpl.ww0add
title: Evolution of the Mars 2020 Organic Carbon Model to a Predictive Tool for Mars Sample Return Science

description: The Mars 2020 Total Organic Carbon (TOC) Model tracks organic carbon generation, transport, and accumulation throughout the Mars 2020 Perseverance Rover sampling system across the mission life.[1] This TOC model was the culmination of a several-year, multi-disciplinary effort to ensure the sample tubes aboard the Mars Perseverance Rover would be amongst the cleanest hardware ever launched and enable the detection of traces of past life on Mars.[2] The analysis tools used and assumptions made in the final pre-launch analysis were tailored to be flight project verification and validation (V&V) tools, with many conservative choices made to ensure margin against uncertainty in model inputs and flight conditions.[1,3] Now that Perseverance is successfully operating on Mars and has begun to collect samples, it is important to evolve the TOC model to provide realistic predictions for each individual tube so that the Mars Sample Return Science Team can calibrate their models accordingly. Primary areas of model evolution have included expanding from a 1-dimensional to a 2-dimensional axisymmetric analysis domain, incorporating multiple surface materials and associated surface properties in the model system, incorporating flight data rather than using flight predictions, and performing the analysis in a single tool (COMSOL) that tracks accumulation in the sample tubes throughout their lifespan in a physically and temporally-consistent manner. To first demonstrate equivalence between the original and updated TOC models, a set of simplified analysis cases have been performed in which model parameters were varied to identify differences and inconsistencies between the models. Parameters studied in these equivalence cases have included system temperature, diffusion coefficients, contamination densities, and model geometries. This work documents the formulation of the TOC model and its updates, results of the model equivalency study including general lessons-learned about system sensitivities, and additional analysis cases incorporating the next model evolution steps toward fully-integrated mission life simulations for organic carbon accumulation within the Mars 2020 sample tubes. The decision to implement Mars Sample Return will not be finalized until NASA’s completion of the National Environmental Policy Act (NEPA) process. This document is being made available for information purposes only.
DOI: 10.48577/jpl.3pyg5f
title: Martian Mayday: The Evolution of Curiosity’s Safe Mode Communication Over Ten Years

description: Abstract—When the Curiosity Mars rover encounters a serious fault, it enters a configuration called safe mode. Curiosity's autonomous safe mode behavior must keep the rover communicative and energy safe until the operations team can triage the issue and send recovery commands. In safe mode, Curiosity follows a preset schedule of windows that specify the antenna, transmitted telemetry, and solar time of each communications opportunity. The timing of these windows, called system fault protection (SFP) windows, is crucial for Curiosity to autonomously maintain its safe mode goals of communication and power-positivity. Not only do SFP windows dictate when Curiosity attempts to communicate over its ultra-high frequency and X-band antennas, they also largely control the rover’s power consumption by dictating when its primary computer powers on and off, known as wake and sleep states. Because Curiosity is power-negative when awake, sleep time is necessary to charge its batteries to a higher state of charge than the previous sol. During Curiosity’s prime mission, fault protection engineers regularly updated SFP windows to accommodate changing Mars relay orbits and relative geometry of Earth and Mars. The initial SFP windows at landing allowed a hearty nine Martian hours of communication which left Curiosity power-positive by 22% increased state of charge over a single sol in safe mode. But as the mission progressed, updates to SFP windows were additionally driven by Curiosity’s aging power source, which continuously requires increased sleep time to maintain power-positivity. As of 2023, 6.6 hours of safe mode communication leaves Curiosity only 5.5% power-positive. Secondary factors that were not present during Curiosity's prime mission—including changing uplink strategies and Mars relay infrastructure—have also introduced new challenges to updating SFP windows. The process of selecting SFP window times has evolved into an iterative analysis that must consider several dynamic operational factors to achieve a balance of communication and power. By using this analysis to converge on a design that satisfies energy requirements and desired communication time, fault protection engineers ensure Curiosity’s safe mode configuration in its extended mission remains truly safe. This paper discusses how Curiosity uses SFP windows to communicate in safe mode, the factors that influence how SFP windows are designed, and how both the design process and the windows themselves have changed over ten years on the surface of Mars.
DOI: 10.25549/whit-c170-75143
title: Prudence Yarn Shop, Los Angeles, CA, 1935

description: 5 photographs of Prudence Yarn Shop, Los Angeles, CA, 1935. "Subject: Prudence Yarn Shop; Client: Kenworthy; Job: 6-21-119; Year: 1935; Original print order: 8x10; Finish: gl[ossy]" -- on envelope front. "Photographer: Joe & Dick; Original photographs- Size: 4, 8x10, 1; Amount: 7.50, 5.00" -- on envelope back.
DOI: 10.48577/jpl.ivff4w
title: Psyche's Payload Fault Protection Design and Strategy for Launch Readiness

description: NASA's Psyche mission is a journey to the unique metal-rich (16) Psyche asteroid orbiting the Sun between Mars and Jupiter to get a better insight into the Earth's core and the core of other terrestrial planets. The mission will offer a unique scientific value by mapping the asteroid and studying its properties with the help of a robust Spacecraft that carries a highly capable Payload suite onboard. Psyche's Payload suite is a novel collection of heritage and technology demonstration instruments. Heritage instruments include a Multispectral Imager, a Magnetometer, and a Gamma Ray and Neutron Spectrometer. The Deep Space Optical Communications (DSOC) instrument is a Class D technology demonstration that will perform optical communications at AU-magnitude distances. The Spacecraft will need to survive in vaguely known environments and with a wide range of uncertainties from the time of Launch to the Psyche Science Orbital Operations period. Most of these instruments will be functioning at the same time in conjunction with the rest of the subsystems, and with limited contact with the ground operations team on Earth. To ensure that the Spacecraft and instruments are robust to possible anomalies and can remain healthy and functional to meet the science goals and overall mission success criteria, Psyche's Fault Protection (FP) and Payload teams designed and implemented an autonomous onboard fault management architecture and engine. This Flight Software-based autonomy will execute fault detection, isolation and perform health recovery actions to prevent propagation of anomalous behavior between the instruments and the rest of the Spacecraft. This paper details the history of how Psyche’s Payload Fault Protection design evolved and was fine-tuned through a rigorous testing and analysis campaign to address the needs and challenges of the diverse set of instruments. It describes the key lessons learned, including the ones that emerged post launch-slip in the year 2022, and how a shift in the FP Verification and Validation (V&V) strategy helped the team gain increased confidence in the instruments for Launch readiness in 2023.
DOI: 10.48577/jpl.nb70n5
title: EnVision VenSAR Altimetry of Venus

description: The EnVision mission slated for launch in 2031, will revisit Venus decades after Magellan last made satellite measurements of Venus. In addition to hyper-spectral imagers (VenSpec Suite \cite{venspec}) for characterizing the Venus atmosphere, and ground penetrating radar (SRS \cite{srs}) for measuring subsurface structure, EnVision will characterize the surface Venus using VenSAR \cite{vensar}, a multi-mode S-band radar. VenSAR is designed for imaging Venus using Synthetic Aperture Radar (SAR) with repeat observations spread over several years to detect changes on the surface of Venus, characterizing Venus surface via polarimetric SAR and radiometry and for making high resolution topographic maps of Venus using Radar Altimetry and SAR Stereo. This article describes the VenSAR altimeter mode, its design, operation and expected performance.
DOI: 10.48577/jpl.syz5bw
title: Repeat Pass InSAR at Enceladus- A Geophysics Mission Concept to Understand Dynamics and Habitability

description: Saturn’s icy moon Enceladus is tidally locked in a slightly eccentric orbit, and experiences periodic tidal forcing every 33 hours as it orbits the planet. These tidal forces deform the icy shell, creating active cryovolcanic jet activity localized along major fault structures referred to as the ‘Tiger Stripes” located within the South Polar Terrain. This activity and associated tectonic motions transform the surface, making Enceladus a natural laboratory for studying the geophysics of an ocean world using geodetic techniques, if one could measure its dynamic shape. Furthermore, it has been shown that geodetic observations of surface strain can directly constrain spatial variations in ice shell thickness. Repeat Pass Interferometric Synthetic Aperture Radar (InSAR) is a technique that has been used in Earth orbiting missions to create widearea, fine-resolution maps of surface displacement, transforming the field of geodesy. The technique requires that the satellite be placed in an exact repeat orbit around target body to ensure coherence of the surface over time. Recent analysis suggests that a satellite can be placed in a stable repeating orbit around Enceladus, leading to the possibility of developing a repeat-pass InSAR mission to measure the dynamics and structure of Enceladus. Understanding the geophysical environment of Enceladus, what leads to its surface features and changes over time, can provide insights into the energy budget of the body, its thermal state, and internal structure, all essential elements in understanding habitability of the moon. An InSAR-capable radar instrument design must balance wavelength, bandwidth, power, and other system parameters to address the observational uncertainties associated with the unusual radar scattering behavior of Enceladus, as well as orbit control limitations. This paper describes some of these design trades.
DOI: 10.25549/whit-c170-26980
title: Prime windows for Aunt Jo, 307 South Figueroa Street, Los Angeles, CA, 1930

description: Photograph of show window for display of Aunt Jo's California prune delights, J. W. Robinson, 307 South Figueroa Street, Los Angeles, CA, 1930. "Subject: Prime window for Aunt Jo, 307 So[uth] Figueroa; Client: J. W. Robinson; Original print order: 1; Size: 8x10; Finish: gl[ossy]; Year: 1930; Job: 3-21-169" -- on envelope front. "Extra charges: Pettit; Original photographs-Size: 1, 8x10, Night Window, $5.00; Operator's report (Name): Davey" -- on envelope back.
DOI: 10.48577/jpl.1smbuq
title: Manuscript: Thermal Vacuum Testing of the HVM3 Instrument and UCIS-Moon Imaging Spectrometer

description: "Volatiles and Minerals Moon Mapper (HVM3) instrument for the orbiting Lunar Trailblazer (LTB) Mission and the Ultra Compact Imaging Spectrometer for the Moon (UCIS-Moon) for a future lunar surface mission underwent successful thermal vacuum testing including cold alignment, thermal balance and calibration. These two imaging spectrometers are designed to measure minerals, molecular water, water ice and OH-bearing species on the Moon. They have a spectral range of 0.6 µm to 3.6 µm with a spectral resolution of 10 nm and share the same spectrometer design but with different front optics and thermal management systems. They require temperatures of 120 K and &lt;190 K on the detector and spectrometer, respec­ tively. Their similarities allowed for the majority of the ground support equipment to be interchangeable. The HVM3 thermal vacuum campaign began with cold alignment of the telescope, spectrometer and focal plane in April 2022. Cold alignment was completed after two cycles and then the rest of the instrument was assembled. In October 2022, thermal vacuum testing of the entire instrument began. This test campaign included thermal balance as well as instrument calibration. Immediately after the conclusion of the HVM3 instrument level thermal vacuum test, the UCIS-Moon cold alignment testing began. After four cold alignment cycles, the UCIS-Moon telescope, spectrometer and focal plane were all aligned. The cold alignment tests were followed by calibration and thermal balance that concluded in early February 2023. This paper describes the thermal system design and numerous associated challenges and lessons learnedfor the various thermal vacuum tests that were performed."
DOI: 10.48577/jpl.bsekxj
title: Mars Sample Return Direct Earth Approach Navigation Analysis

description: This paper describes the navigation analysis, results and filter strategies planned by the European Space Agency (ESA) and the National Aeronautical and Space Administration (NASA) navigation Teams for the joint ESA and NASA Mars Sample Return (MSR) mission, targeting a direct approach to the Earth landing site at the Utah Test and Training Range (UTTR). Direct approach strategy and navigation filter assumptions will be discussed for ESA’s Earth Return Orbiter (ERO) in order to satisfy approach navigation requirements and to achieve the desired landing footprint uncertainty at the UTTR landing site for the Earth Entry System (EES). After the EES is released three days prior to atmospheric entry, alternate tracking measurements are needed since the EES cannot be tracked after release by ESA's European Space Tracking network (ESTRACK) and NASA's Deep Space Network (DSN). A navigation sensitivity analysis to the alternate tracking measurement accuracy will be presented.
DOI: 10.48577/jpl.zmg433
title: Target Detection and Orbit Determination for Mars Sample Return

description: The Mars Sample Return campaign is a joint effort being planned by the National Aeronautics and Space Administration (NASA) and the European Space Agency (ESA) to bring back a curated set of samples from the Jezero crater region of Mars to Earth. A fundamental part of this campaign is the Launch, Rendezvous, and Capture phase at Mars, which would begin with the launch of an Orbiting Sample (OS) container aboard NASA’s Mars Ascent Vehicle (MAV). Once in orbit, the MAV upper stage would release the OS. ESA’s Earth Return Orbiter must then determine the state of the OS so that it could maneuver to its vicinity for capture. This paper provides an overview of ongoing analyses performed at NASA’s Jet Propulsion Laboratory to support the development of the baseline MAV and OS detection and orbit determination strategies, which leverage both optical and radio frequency techniques.
DOI: 10.25549/whit-c170-27497
title: Case #36554, Chinaman George Wong, Pacific Indemnity, Southern California, 1931

description: 2 photographs of photographs of automobile accident and accident victim, Southern California, 1931. "Subject: copies of photos in case #36554, Chinaman George Wong; Client: Pac[ific] Indemnity; Original Print Order: 2 on; Size: 8x10; 11 - 4x5s', (see Joe); Year: 1931; Job: 6-26-162" -- on envelope front. "Operator's Report (Name): Joe; Original Photographs - Size: 2; Amount: 3.00, 2.00; 2 Exposures With Lights: @ 1.00" -- on envelope back.
DOI: 10.48577/jpl.u2lfrd
title: Diversity, Equity, Inclusion, Accessibility (DEIA) Allyshipin the Information/Knowledge Management Universe

description: No abstract available.
DOI: 10.48577/jpl.scb33v
title: Comparisons of the Traditional Feature Matching and Optical Flow Algorithms for Atmospheric Motion Vector Estimation

description: No abstract available.
DOI: 10.48577/jpl.wfck9s
title: Mars Rovers Future Missions

description: No abstract available.
DOI: 10.25549/whit-c170-27031
title: Mary Philbin and radio, Majestic Radio, Southern California, 1930

description: 5 photographs of actress Mary Philbin next to a Majestic Radio, Southern California, 1930. "Subject: Mary Philbin and radio (studio); Client: Majestic Radio; Original print order: 1 ea[ch]; Size: 8x10; Finish: gl[ossy]; Year: 1930; Job: 3-18-148" -- on envelope front. "Extra charges: Bouldin; Original photographs-At Studio: 5 at 3.00, Special Lighting or Background, 15.00; Operator's report (Name): Dick" -- on envelope back.
DOI: 10.48577/jpl.9bvb9m
title: ROBUST MEMS WAVEGUIDE SWITCH FOR THZ SPECTROSCOPY IN SPACE

description: No abstract available.
DOI: 10.48577/jpl.eusazx
title: Infrasound Investigations of Venus Interior from Balloons and from Orbit

description: No abstract available.
DOI: 10.48577/jpl.pgqtcn
title: Space Radiation Challenges for Deep Space Mission in the Artemis Era: from Moon to Mars

description: No abstract available.
DOI: 10.25549/whit-c170-99685
title: [Launch of the "American Clipper," Boeing 314 Clipper] USA, 1939

description: 11 photographs of the launch of a Pan American flying boat, NC18606, produced in June, Treasure Island, San Francisco, 1939 July 6. The airplane was launched while in the water like a ship, and flew from the water after launch. "Pan American Airways System" and "PAA" are written on the airplane.
DOI: 10.48577/jpl.ubl7mr
title: The NASA-ISRO Synthetic Aperture Radar Mission – The Final Stretch Toward a New Capability for Earth Science and Applications

description: No abstract available.
DOI: 10.48577/jpl.rbw8is
title: The NASA-ISRO SAR Mission: Innovative Operations for Groundbreaking Science

description: No abstract available.
DOI: 10.48577/jpl.dj8km0
title: Latest Developments on JPL’s Global Ionospheric Mapping Software Suite

description: No abstract available.
DOI: 10.25549/whittington-ouc12225859
title: Xmas Accents, Pages 4 & 5, Los Angeles, Calif., 1940

description: 29 photographs of toys for sale, including negatives cut to show a single toy or set, Los Angeles, CA, 1940. "Subject: X[Christ]mas Accents, Page 4 & 5." "Client: J. W. Robinson Co[mpany]; Original print order: Hold; 2 Sets 1 Each; Size: 16 x 20; Finish: gl[ossy]; Year: 1940; Job: 010-08-57" -- on envelope front. "29" --on envelope back.
DOI: 10.48577/jpl.6ozpxt
title: Hydrothermal Sea Vent CT Imaging and Fluid Flow Simulation

description: No abstract available.
DOI: 10.48577/jpl.06ke2u
title: Development ofTalk - Balloon-Based Seismology for Venus through Earth-Analog Experiments and Simulations

description: No abstract available.
DOI: 10.48577/jpl.4n1xmo
title: How I Learned to Stop Worrying and Love ChatGPT: An interactive workshop with real JPL use-cases for everyone

description: No abstract available.
DOI: 10.25549/whit-c170-99813
title: [Man walking], Los Angeles, 1939

description: 12 photographs of a man in a suit who joins another man in a suit walking, Los Angeles, 1939 June. These men are probably both models in a particular vignette.
DOI: 10.48577/jpl.jnlaoy
title: Europa Clipper Mission Update to OPAG

description: No abstract available.
DOI: 10.48577/jpl.bnmkvr
title: The Next Generation Radioisotope Thermoelectric Generator Project - Overview and Progress Status

description: No abstract available.
DOI: 10.48577/jpl.w0hu2p
title: Europa Clipper

description: No abstract available.
DOI: 10.25549/whit-c170-71674
title: Death Valley, CA, [s.d.]

description: 16 photographs of Death Valley, CA. "Subject: Death Valley; Remarks: Hotel and Valley Shots; No. 11" -- on envelope. "Death Valley, Hotel and Valley Shots, No. 11" -- on sleeve.
DOI: 10.48577/jpl.ocrabu
title: In-Flight Validation of the Landsat 7,8,9 Thermal Channels Using Automated Validation Sites at Lake Tahoe CA/NV and Salton Sea CA

description: No abstract available.
DOI: 10.48577/jpl.cusccy
title: Dynamical Systems Applications to Missions to Detect Life in the Ocean Worlds

description: No abstract available.
DOI: 10.48577/jpl.s0urx9
title: Optical Ranging Prototype and Interoperability Testing

description: No abstract available.
DOI: 10.48577/jpl.erwijt
title: CSUN Visit Recent Grads Division Presentation

description: No abstract available.
DOI: 10.48577/jpl.n54bbi
title: Exploring the Dark Universe With Euclid

description: No abstract available.
DOI: 10.25549/whit-c170-71660
title: Chicago World's Fair, "Century of Progress", & Ohio River, 1933-1934

description: 18 photographs of the Chicago World's Fair, crowds, buildings, and the Ohio River, 1933-1934. "Subject: Chicago; Remarks: World's Fair, Crowds, Buildings, 'Century of Progress', Ohio River Shot; No. 5" -- on envelope. "Chicago Worlds [sic] Fair 1932 [sic], 'Century of Progress', Crowds & buildings, Ohio River Shot; No. 5" -- on sleeve.
DOI: 10.48577/jpl.ff7ky7
title: Intrinsic Dimensionality and Spectral Diversity

description: No abstract available.
DOI: 10.48577/jpl.zsb6nb
title: Exoplanets Atmospheres: Trends, Evolution and Habitability

description: No abstract available.
DOI: 10.48577/jpl.6c3417
title: EMIT mission introduction, applications

description: No abstract available.
DOI: 10.25549/whit-c170-27422
title: Chevrolet Roadster, Southern California, 1931

description: 3 photographs of Chevrolet Roadster, Southern California, 1931. "Subject: Chevrolet R[oa]dster; Client: Jenkins, R. H.; Original Print Order: 1 ea[ch]; Size: 8x10; Finish: gl[ossy]; Year: 1931; Job: 1-23-180" -- on envelope front. "Operator's Report Name: "Dick"; 3 Original Photographs-Size: 8x10; Amount: 3.00; Extra Charges: File #2761" -- on envelope back.
DOI: 10.48577/jpl.ibrvpb
title: Dealing With Force Limit Error Due to Adaptive Fixturing Mass Van Dyke 33rd ATS.

description: No abstract available.
DOI: 10.48577/jpl.mrwxkf
title: Stereoscopic Panorama Visualization for Mars Operations: An Unusual but Practical Application of VR

description: No abstract available.
DOI: 10.48577/jpl.7gscwm
title: Early Exoplanet Observations with JWST

description: No abstract available.
DOI: 10.25549/whit-c170-1624
title: Walnut dehydrator, Southern California, 1930

description: 3 photographs of drawings of walnut dehydrator and thermometer, Southern California, 1930. "copies of walnut dehydrator; Agency: McCarty Co.; Client: Cass M[anu]f[acturin]g Co.; Original print order: 6 ea[ch], 1 [ea]ch; 8x10; 5x7; Finish: gl[ossy]; Mount: 6 ea[ch] off 4= 24 @50¢, 3 @ 25¢; 18, 50, 9 00; Year: 1930; Job: 2-12-79" -- on envelope front. "Copies: 3 @ 1.00; Amount: 3.00; Extra charges: #1087-A" -- on envelope back.
DOI: 10.48577/jpl.8syz23
title: Revisiting orbit fits for the Eris-Dysnomia system

description: No abstract available.
DOI: 10.48577/jpl.etsg95
title: Wildfire Impacts on Watershed Transport of Carbon to Coasts

description: No abstract available.
DOI: 10.48577/jpl.ubw8iq
title: NASA-JPL Center Update

description: No abstract available.
DOI: 10.25549/whit-c170-27507
title: Girl wearing apron in beauty parlor, Southern California, 1931

description: 2 photographs of woman in beauty parlor, Southern California, 1931. "Subject: girl wearing apron in beauty parlor; Agency: McCarty; Client: Paris Hair; Original print order: 1 ea[ch]; Size: 8x10, 5x7; Finish: gl[ossy]; Re-order: 1 ea[ch]; Year: 1931; Job: 1-27-213" -- on envelope front. "Operator's report: Joe; Original photographs: 2; Size: 8x10; Exposures with lights: 8; Ounces of flash powder: 2 globes; Amount: 3.00, 2.00; Extra charges: # 3152" -- on envelope back.
DOI: 10.48577/jpl.yxugev
title: Careers at JPL 2023-05-03

description: No abstract available.
DOI: 10.48577/jpl.iu3vds
title: Early Exoplanet Observations with JWST

description: No abstract available.
DOI: 10.48577/jpl.svjnyl
title: The OCO-2 and OCO-3 Missions: Status, results and plans

description: No abstract available.