cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.25574/csc2.obs.09245
title: Chandra X-ray Observatory ObsId 09245

description: CSC uses combined (i.e. overlapping) Chandra observations for detecting X-ray sources. This allows the catalog to include significantly fainter sources than CSC 1.1. The set of overlapping observations that have been combined in this way is known as a "stack".
DOI: 10.48577/jpl.6jx5tf
title: GUIDANCE, NAVIGATION CONTROL FOR THE PSYCHE MISSION

description: The Psyche spacecraft is enroute to the asteroid of the same name. Located in the main belt, the asteroid is of great scientific interest because it is likely rich in metal. The metal may be from the core of a planetesimal, one of the building blocks of the Sun’s planetary system. At (16) Psyche scientists will explore, for the first time ever, a world made not of rock or ice, but rich in metal. The mis-sion is enabled by electric propulsion; it is the first to use Hall-effect thrusters beyond lunar orbit. By handling the novel challenges of the new use case for the technology, the spacecraft’s Guidance, Navigation Control (GNC) sub-system helps enable the mission. It also helps to enable the advancement of new technology to return more science data faster. The spacecraft hosts the Deep Space Optical Communication (DSOC) demonstration, which tests a sophisti-cated new laser communication technology to communicate between a probe in deep space and Earth. Several pointing performance requirements and interfaces support the technology.
DOI: 10.25574/csc2.obs.03030
title: Chandra X-ray Observatory ObsId 03030

description: CSC uses combined (i.e. overlapping) Chandra observations for detecting X-ray sources. This allows the catalog to include significantly fainter sources than CSC 1.1. The set of overlapping observations that have been combined in this way is known as a "stack".
DOI: 10.25574/csc2.obs.03552
title: Chandra X-ray Observatory ObsId 03552

description: CSC uses combined (i.e. overlapping) Chandra observations for detecting X-ray sources. This allows the catalog to include significantly fainter sources than CSC 1.1. The set of overlapping observations that have been combined in this way is known as a "stack".
DOI: 10.25574/csc2.obs.03109
title: Chandra X-ray Observatory ObsId 03109

description: CSC uses combined (i.e. overlapping) Chandra observations for detecting X-ray sources. This allows the catalog to include significantly fainter sources than CSC 1.1. The set of overlapping observations that have been combined in this way is known as a "stack".
DOI: 10.25574/csc2.obs.08629
title: Chandra X-ray Observatory ObsId 08629

description: CSC uses combined (i.e. overlapping) Chandra observations for detecting X-ray sources. This allows the catalog to include significantly fainter sources than CSC 1.1. The set of overlapping observations that have been combined in this way is known as a "stack".
DOI: 10.48577/jpl.bw4xgf
title: EXPLORING THE JAU CRATER CLUSTER, GALE CRATER, MARS.

description: The Jau crater cluster on the north flank of Mt. Sharp in Gale crater consists of 20 to 3023 simultaneously formed impact structures. The craters are ~2 m to ~25 m across (generally24 increasing in size from the ESE to WNW). Using Digital Terrain Models derived from orbital and25 rover orthomosaics of two of the larger craters, we evaluated the amount and processes of26 degradation based upon current versus expected original crater morphology. We conclude that the27 craters in the cluster are the result of a fragmenting primary impactor and that predominantly28 aeolian degradation at these two craters is responsible for ~1-2 m wall back-wasting, 10s of cm of29 infilling by aeolian drift, and 20-40 cm rim lowering. Other craters in the cluster experienced30 similar degradation whose expression varied according to crater size: smaller-scale morphology at31 smaller craters is more modified by a given amount of erosion. Prevailing winds erode the32 downhill, NNE side of the craters more though raised rims persist at the larger craters. An33 estimated vertical erosion rate of 0.1 m/Myr and horizontal erosion rate of several m/Myr predicted34 by others appears most consistent with the Jau crater morphology and setting relative to erosion35 estimates for elsewhere in Gale crater and other Mars landing sites. Factoring in uncertainties in36 our estimates, these rates are broadly consistent with the scale of erosion inferred for evolution of37 larger, older features on Mt. Sharp and suggest the cluster-forming impact occurred one to a few38 and less than ~5 Ma.
DOI: 10.25574/csc2.obs.08465
title: Chandra X-ray Observatory ObsId 08465

description: CSC uses combined (i.e. overlapping) Chandra observations for detecting X-ray sources. This allows the catalog to include significantly fainter sources than CSC 1.1. The set of overlapping observations that have been combined in this way is known as a "stack".
DOI: 10.25574/csc2.obs.23218
title: Chandra X-ray Observatory ObsId 23218

description: CSC uses combined (i.e. overlapping) Chandra observations for detecting X-ray sources. This allows the catalog to include significantly fainter sources than CSC 1.1. The set of overlapping observations that have been combined in this way is known as a "stack".
DOI: 10.25574/csc2.obs.18188
title: Chandra X-ray Observatory ObsId 18188

description: CSC uses combined (i.e. overlapping) Chandra observations for detecting X-ray sources. This allows the catalog to include significantly fainter sources than CSC 1.1. The set of overlapping observations that have been combined in this way is known as a "stack".
DOI: 10.48577/jpl.sjq4ip
title: Spherical Bessel Harmonic Gravity Expansions and Their Properties Related to Sir Isaac Newton's Shell Theorem via the Riemann Zeta Function

description: The conventional spherical harmonics used to describe the gravity field surrounding a non-spherical mass only converge exterior to the body’s Brillouin (circumscribing) sphere. The complementary gravity field interior to this sphere is provided by spherical Bessel harmonics. We present an algorithm for calculating the Bessel harmonic coefficients directly from the surface integral of an arbitrary shape with homogenous density. Exploring the special case of a homogenous sphere, we show that the Bessel harmonic expansion is a generalization of Newton's Shell theorem. In this special case, the non-zero Bessel coefficients are shown to be related to the Riemann zeta function.
DOI: 10.25574/csc2.obs.16488
title: Chandra X-ray Observatory ObsId 16488

description: CSC uses combined (i.e. overlapping) Chandra observations for detecting X-ray sources. This allows the catalog to include significantly fainter sources than CSC 1.1. The set of overlapping observations that have been combined in this way is known as a "stack".
DOI: 10.25574/csc2.obs.04898
title: Chandra X-ray Observatory ObsId 04898

description: CSC uses combined (i.e. overlapping) Chandra observations for detecting X-ray sources. This allows the catalog to include significantly fainter sources than CSC 1.1. The set of overlapping observations that have been combined in this way is known as a "stack".
DOI: 10.25574/csc2.obs.10467
title: Chandra X-ray Observatory ObsId 10467

description: CSC uses combined (i.e. overlapping) Chandra observations for detecting X-ray sources. This allows the catalog to include significantly fainter sources than CSC 1.1. The set of overlapping observations that have been combined in this way is known as a "stack".
DOI: 10.25574/csc2.obs.18684
title: Chandra X-ray Observatory ObsId 18684

description: CSC uses combined (i.e. overlapping) Chandra observations for detecting X-ray sources. This allows the catalog to include significantly fainter sources than CSC 1.1. The set of overlapping observations that have been combined in this way is known as a "stack".
DOI: 10.25574/csc2.obs.08619
title: Chandra X-ray Observatory ObsId 08619

description: CSC uses combined (i.e. overlapping) Chandra observations for detecting X-ray sources. This allows the catalog to include significantly fainter sources than CSC 1.1. The set of overlapping observations that have been combined in this way is known as a "stack".
DOI: 10.25574/csc2.obs.11829
title: Chandra X-ray Observatory ObsId 11829

description: CSC uses combined (i.e. overlapping) Chandra observations for detecting X-ray sources. This allows the catalog to include significantly fainter sources than CSC 1.1. The set of overlapping observations that have been combined in this way is known as a "stack".
DOI: 10.48577/jpl.obral7
title: Developing Contingency Options for INCUS: Differential Drag for Constellation Maintenance

description: No abstract available.
DOI: 10.25574/csc2.obs.00370
title: Chandra X-ray Observatory ObsId 00370

description: CSC uses combined (i.e. overlapping) Chandra observations for detecting X-ray sources. This allows the catalog to include significantly fainter sources than CSC 1.1. The set of overlapping observations that have been combined in this way is known as a "stack".
DOI: 10.25574/csc2.obs.18269
title: Chandra X-ray Observatory ObsId 18269

description: CSC uses combined (i.e. overlapping) Chandra observations for detecting X-ray sources. This allows the catalog to include significantly fainter sources than CSC 1.1. The set of overlapping observations that have been combined in this way is known as a "stack".
DOI: 10.25574/csc2.obs.10306
title: Chandra X-ray Observatory ObsId 10306

description: CSC uses combined (i.e. overlapping) Chandra observations for detecting X-ray sources. This allows the catalog to include significantly fainter sources than CSC 1.1. The set of overlapping observations that have been combined in this way is known as a "stack".
DOI: 10.25574/csc2.obs.14035
title: Chandra X-ray Observatory ObsId 14035

description: CSC uses combined (i.e. overlapping) Chandra observations for detecting X-ray sources. This allows the catalog to include significantly fainter sources than CSC 1.1. The set of overlapping observations that have been combined in this way is known as a "stack".
DOI: 10.25574/csc2.obs.14037
title: Chandra X-ray Observatory ObsId 14037

description: CSC uses combined (i.e. overlapping) Chandra observations for detecting X-ray sources. This allows the catalog to include significantly fainter sources than CSC 1.1. The set of overlapping observations that have been combined in this way is known as a "stack".
DOI: 10.48577/jpl.tr5auj
title: Study of Hydrologic Connectivity and Tidal Influence on Water Flow Within Louisiana Coastal Wetlands Using Rapid-Repeat Interferometric Synthetic Aperture Radar

description: The exchange of water, sediment, and nutrients in wetlands occurs through a complex network of channels and overbank flow. Although optical sensors can map channels at high resolution, they fail to identify narrow intermittent channels colonized by vegetation. We applied interferometry techniques to rapid-repeat (~30 min) Synthetic Aperture Radar (SAR) imagery of the southern Atchafalaya basin in Louisiana acquired during rising-to-high and ebbing-to-low tides to identify and differentiate permanent open water channels from intermittent channels in which flow varies with tidal conditions and to identify locations where overbank flow occurs. Open water surfaces appear as low interferometric coherence pixels, and the coherence in 60-minute and 90-minute in-terferograms can efficiently identify channels, some less than 10m wide. The channel networks at rising and ebbing tide show significant differences in the extent of flow, with vegetation-filled small channels more clearly identified at rising-to-high tide. InSAR phase change is used to iden-tify locations on channel banks where overbank flow occurs at rising and ebbing tides, which is a critical component for modelling wetland hydrodynamics. SAR maps the channel network in our study area better than the optical instruments tested, particularly the small channels that are pri-marily active at higher tides and extend deep into the island interiors. The study shows the capa-bility of rapid repeat InSAR to track how water moves through wetlands during a tidal cycle
DOI: 10.25574/csc2.obs.12799
title: Chandra X-ray Observatory ObsId 12799

description: CSC uses combined (i.e. overlapping) Chandra observations for detecting X-ray sources. This allows the catalog to include significantly fainter sources than CSC 1.1. The set of overlapping observations that have been combined in this way is known as a "stack".
DOI: 10.25574/csc2.obs.12866
title: Chandra X-ray Observatory ObsId 12866

description: CSC uses combined (i.e. overlapping) Chandra observations for detecting X-ray sources. This allows the catalog to include significantly fainter sources than CSC 1.1. The set of overlapping observations that have been combined in this way is known as a "stack".
DOI: 10.25574/csc2.obs.24921
title: Chandra X-ray Observatory ObsId 24921

description: CSC uses combined (i.e. overlapping) Chandra observations for detecting X-ray sources. This allows the catalog to include significantly fainter sources than CSC 1.1. The set of overlapping observations that have been combined in this way is known as a "stack".
DOI: 10.25574/csc2.obs.14899
title: Chandra X-ray Observatory ObsId 14899

description: CSC uses combined (i.e. overlapping) Chandra observations for detecting X-ray sources. This allows the catalog to include significantly fainter sources than CSC 1.1. The set of overlapping observations that have been combined in this way is known as a "stack".
DOI: 10.25574/csc2.obs.09412
title: Chandra X-ray Observatory ObsId 09412

description: CSC uses combined (i.e. overlapping) Chandra observations for detecting X-ray sources. This allows the catalog to include significantly fainter sources than CSC 1.1. The set of overlapping observations that have been combined in this way is known as a "stack".
DOI: 10.25574/csc2.obs.04011
title: Chandra X-ray Observatory ObsId 04011

description: CSC uses combined (i.e. overlapping) Chandra observations for detecting X-ray sources. This allows the catalog to include significantly fainter sources than CSC 1.1. The set of overlapping observations that have been combined in this way is known as a "stack".
DOI: 10.25574/csc2.obs.04766
title: Chandra X-ray Observatory ObsId 04766

description: CSC uses combined (i.e. overlapping) Chandra observations for detecting X-ray sources. This allows the catalog to include significantly fainter sources than CSC 1.1. The set of overlapping observations that have been combined in this way is known as a "stack".
DOI: 10.25574/csc2.obs.10744
title: Chandra X-ray Observatory ObsId 10744

description: CSC uses combined (i.e. overlapping) Chandra observations for detecting X-ray sources. This allows the catalog to include significantly fainter sources than CSC 1.1. The set of overlapping observations that have been combined in this way is known as a "stack".
DOI: 10.25574/csc2.obs.15017
title: Chandra X-ray Observatory ObsId 15017

description: CSC uses combined (i.e. overlapping) Chandra observations for detecting X-ray sources. This allows the catalog to include significantly fainter sources than CSC 1.1. The set of overlapping observations that have been combined in this way is known as a "stack".
DOI: 10.25574/csc2.obs.19730
title: Chandra X-ray Observatory ObsId 19730

description: CSC uses combined (i.e. overlapping) Chandra observations for detecting X-ray sources. This allows the catalog to include significantly fainter sources than CSC 1.1. The set of overlapping observations that have been combined in this way is known as a "stack".
DOI: 10.48577/jpl.qmjpxh
title: Glacial Vermicular Ridge Features on Axel Heiberg Island, Nunavut, Canada

description: Vermicular Ridge Features (VRFs) comprise a series of ridges and troughs with a circular, sinuous, and anastomosing morphology composed of clast-rich sandy diamict. VRFs were first reported on the south coast of Devon Island, Nunavut, Canada, in the Dundas Harbour region. Here, we document the presence of VRFs near Mokka Fjord on Axel Heiberg Island, Nunavut, Canada. We utilize field observations, ultra high resolution LiDAR, and ground penetrating radar to characterize and compare the morphometry and sedimentology of VRFs near Mokka Fjord on the eastern coast of Axel Heiberg Island to other periglacial, paraglacial, and glacial landforms. A leading periglacial (i.e., segregation ice features/lithalsas) and glacial (i.e., ring-ridge moraines and kame/kettled terraces) origin are presented. We interpret Mokka Fjord VRFs to be an ice-marginal feature resulting from paraglacial ablation of buried glacial ice producing a hummocky ring-ridge moraine comprised of supra- and englacial debris. This formation mechanism would infer a largely polythermal glacial environment with limited water supply. Likely from occasional warm-based periods at the ice margins which may allow sediment output and ice burial from basal ice debris redistribution or the thinning and subsequent burial of snout ice from glaciofluvial outwash.
DOI: 10.25574/csc2.obs.06348
title: Chandra X-ray Observatory ObsId 06348

description: CSC uses combined (i.e. overlapping) Chandra observations for detecting X-ray sources. This allows the catalog to include significantly fainter sources than CSC 1.1. The set of overlapping observations that have been combined in this way is known as a "stack".
DOI: 10.25574/csc2.obs.00387
title: Chandra X-ray Observatory ObsId 00387

description: CSC uses combined (i.e. overlapping) Chandra observations for detecting X-ray sources. This allows the catalog to include significantly fainter sources than CSC 1.1. The set of overlapping observations that have been combined in this way is known as a "stack".
DOI: 10.25574/csc2.obs.18928
title: Chandra X-ray Observatory ObsId 18928

description: CSC uses combined (i.e. overlapping) Chandra observations for detecting X-ray sources. This allows the catalog to include significantly fainter sources than CSC 1.1. The set of overlapping observations that have been combined in this way is known as a "stack".
DOI: 10.25574/csc2.obs.05638
title: Chandra X-ray Observatory ObsId 05638

description: CSC uses combined (i.e. overlapping) Chandra observations for detecting X-ray sources. This allows the catalog to include significantly fainter sources than CSC 1.1. The set of overlapping observations that have been combined in this way is known as a "stack".
DOI: 10.25574/csc2.obs.14448
title: Chandra X-ray Observatory ObsId 14448

description: CSC uses combined (i.e. overlapping) Chandra observations for detecting X-ray sources. This allows the catalog to include significantly fainter sources than CSC 1.1. The set of overlapping observations that have been combined in this way is known as a "stack".
DOI: 10.25574/csc2.obs.16526
title: Chandra X-ray Observatory ObsId 16526

description: CSC uses combined (i.e. overlapping) Chandra observations for detecting X-ray sources. This allows the catalog to include significantly fainter sources than CSC 1.1. The set of overlapping observations that have been combined in this way is known as a "stack".
DOI: 10.48577/jpl.tzly4b
title: Stellar Contamination Correction Using Back-to-Back Transits of TRAPPIST-1 b and c

description: Stellar surface heterogeneities, such as spots and faculae, often contaminate exoplanet transit spectra, hindering precise atmospheric characterization. We demonstrate a novel, epoch-based, modelindependent method to mitigate stellar contamination, applicable to multi-planet systems with at least one airless planet. We apply this method using quasi-simultaneous transits of TRAPPIST-1 b and TRAPPIST-1 c observed on July 9, 2024, with JWST/NIRSpec PRISM. These two planets, with nearly identical radii and impact parameters, are likely either bare rocks or possess thin, low-pressure atmospheres, making them ideal candidates for this technique, as variations in their transit spectra would be primarily attributed to stellar activity. Our observations reveal their transit spectra exhibit consistent features, indicating similar levels of stellar contamination. We use TRAPPIST-1 b to correct the transit spectrum of TRAPPIST-1 c, achieving a 2.5× reduction in stellar contamination at shorter wavelengths. At longer wavelengths, lower SNR prevents clear detection of contamination or full assessment of mitigation. Still, out-of-transit analysis reveals variations across the spectrum, suggesting contamination extends into the longer wavelengths. Based on the success of the correction at shorter wavelengths, we argue that contamination is also reduced at longer wavelengths to a similar extent. This shifts the challenge of detecting atmospheric features to a predominantly white noise issue, which can be addressed by stacking observations. This method enables epoch-specific stellar contamination corrections, allowing co-addition of planetary spectra for reliable searches of secondary atmospheres with signals of 60–250 ppm. Additionally, we identify small-scale cold (∼2000 K) and warm (∼2600 K) regions almost uniformly distributed on TRAPPIST-1, with overall covering fractions varying by ∼0.1% per hour.
DOI: 10.25574/csc2.obs.04181
title: Chandra X-ray Observatory ObsId 04181

description: CSC uses combined (i.e. overlapping) Chandra observations for detecting X-ray sources. This allows the catalog to include significantly fainter sources than CSC 1.1. The set of overlapping observations that have been combined in this way is known as a "stack".
DOI: 10.15468/dl.guvaxn
title: Occurrence Download

description: A dataset containing 101 species occurrences available in GBIF matching the query:
{
 "and" : [
 "DatasetKey is NCSM Vertebrate Paleontology Collection",
 "TaxonKey is Lagomorpha"
 ]
}

 The dataset includes 101 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0010460-250127130748423/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25574/csc2.obs.19511
title: Chandra X-ray Observatory ObsId 19511

description: CSC uses combined (i.e. overlapping) Chandra observations for detecting X-ray sources. This allows the catalog to include significantly fainter sources than CSC 1.1. The set of overlapping observations that have been combined in this way is known as a "stack".
DOI: 10.25574/csc2.obs.26172
title: Chandra X-ray Observatory ObsId 26172

description: CSC uses combined (i.e. overlapping) Chandra observations for detecting X-ray sources. This allows the catalog to include significantly fainter sources than CSC 1.1. The set of overlapping observations that have been combined in this way is known as a "stack".
DOI: 10.48577/jpl.lbnkpc
title: WRR paper - Launching into Societal Benefits from the Surface Water and Ocean Topography (SWOT) Mission

description: The 10th Surface Water and Ocean Topography (SWOT) Applications Meeting, held one year after the satellite's launch, highlighted significant milestones in mission progress and showcased the innovative work of SWOT Early Adopters (EA) using mission data products. Over 100 participants from diverse sectors convened to discuss operational applications leveraging SWOT’s unprecedented water surface measurements. The meeting emphasized applied science efforts to enhance hydrology and oceanographic models. This summary highlights the breadth of operational and private-sector uses of SWOT data, emphasizing its potential to drive new innovations and deliver societal benefits, such as improved water resource management, flood prediction, and climate resilience.
DOI: 10.25574/csc2.obs.07113
title: Chandra X-ray Observatory ObsId 07113

description: CSC uses combined (i.e. overlapping) Chandra observations for detecting X-ray sources. This allows the catalog to include significantly fainter sources than CSC 1.1. The set of overlapping observations that have been combined in this way is known as a "stack".