Category: NASA STI

Abstract: This report describes and characterizes the low-power Jeeva Passive Radio systems, including Wanscatter (passive Chirp Spread Spectrum) and Passive Wi-Fi, with respect to their

Abstract: SnowEx is a multi-year airborne snow campaign with the primary goal of addressing the question: How much water is stored in Earth’s terrestrial snow-covered

Abstract: We present new measurements of the large-scale clustering component of the cross-power spectra of the source-subtracted Spitzer-IRAC cosmic infrared background and Chandra-ACIS cosmic X-ray

Abstract: Recent simulations have indicated that vinyl cyanide is the best candidate molecule for the formation of cell membranes/vesicle structures in Titan’s hydrocarbon-rich lakes and

Abstract: The Wide-Field Infrared Survey Telescope (WFIRST) mission is the next large astrophysics observatory for NASA after the James Webb Space Telescope and is the

Abstract: No abstract available Source:: nasa sit 2       

Abstract: Mission Objective Study the origin and evolution of galaxies, stars planetary systems. Optimized for infrared observations Source:: nasa sit 2       

Abstract: We present new measurements of the deuterium abundance on Jupiter and Saturn, showing evidence that Saturn’s atmosphere contains less deuterium than Jupiter’s. We analyzed

Abstract: This poster demonstrates that different chemistry transport models (CTMs), each extensively validated, can have significant differences in the predicted transport of long-lived trace gases.

Abstract: Atmospheric chemistry is central to many environmental issues such as air pollution, climate change, and stratospheric ozone loss. Chemistry Transport Models (CTM) are a

Abstract: Accurately estimating the mass of water within a snowpack (a.k.a. snow water equivalent, or SWE) across regional or continental scales is a challenge. In

Abstract: This presentation will discuss the updates made to the Constellation Coordination System (CCS) over the past year in release 2018.1. These updates will be

Abstract: No abstract available Source:: nasa sit 2       

Abstract: This presentation will discuss the results of an investigation looking into the physical causes of the observed annual variations in Aqua’s mean local time

Abstract: No abstract available Source:: nasa sit 2       

Abstract: Underlying all operations in the National Airspace System (NAS) is the concept of safety. Safety, as defined by acceptable levels of risk, is to

Abstract: No abstract available Source:: nasa sit 2       

Abstract: We used the new high spectral resolution cross-dispersed facility spectrograph, iSHELL, at the NASA Infrared Telescope Facility on Maunakea, HI, to observe Jupiter-family comet

Abstract: We recently used near-infrared spectroscopy to improve the characterization of 76 low-mass stars around which K2 had detected 79 candidate transiting planets. 29 of

Abstract: We assess the impact of satellite sea surface salinity (SSS) observations on dynamical ENSO forecasts for the big 2015 El Nino event. From March

Abstract: During 2017, two vertical drop tests were conducted on two partial sections removed from a Fokker F28 MK4000 aircraft as a part of a

Abstract: No abstract available Source:: nasa sti       

Abstract: NASA’s Unmanned Aircraft Systems (UAS) Integration in the National Airspace System (NAS) Project (UAS-NAS) and the UAS Executive Committee (EXCOM) Science and Research Panel

Abstract: No abstract available Source:: nasa sit 2       

Abstract: The National Aeronautics and Space Administration (NASA) Near Earth Network (NEN) Project is implementing a new launch communications ground segment to provide services for

Abstract: A method of detecting internal defects in composites or other multilayer materials includes generating a wavefield on a surface of the material. Wavefield data

Abstract: There is renewed interest in developing new supersonic transports after the discontinuation of the Concorde supersonic jet, which was mostly limited for flights over

Abstract: Following an approach similar to that used for the Moon, Mercury’s surface units were subdivided into five time-stratigraphic systems based on geologic mapping using

Abstract: Coarse dust aerosols absorb terrestrial radiation leading to significant longwave heating/cooling rates. Modules accounting for aerosol impacts on radiation have been implemented into CRTM

Abstract: The Spaceflight Associated Neuro-ocular Syndrome (SANS) is characterized by the development of optic disc edema, choroidal folds, cotton-wool spots, globe flattening, and/or refractive error

Abstract: No abstract available Source:: nasa sit 2       

Abstract: Hybrid-electric propulsion systems introduce immense complexity and numerous design challenges not previously encountered in aircraft design. Traditional conceptual-level rotorcraft design approaches may not adequately

Abstract: The Ames Multi-Mission Operations Center (MMOC) enables and supports flight and science operations for Ames’ spaceflight missions. The MMOC is composed of the facilities,

Abstract: In situ compositional and mineralogical measurements on the Martian surface, combined with analyses of Martian meteorites, indicate that most igneous rocks are lavas and

Abstract: The traditional approach to on-orbit gyro scale factor calibration has been to perform large angle rotations about each gyro axis. The maneuvers require the

Abstract: Highly promising locales for biosignature prospecting on Mars are ancient hydrothermal deposits, formed by the interaction of surface water with heat from volcanism or

Abstract: Astrobee is a new class of free-flying robots that operate in the interior of the International Space Station (ISS). In addition to providing a

Abstract: Typically, a limited number of dynamic pressure sensors is employed to determine the unsteady aerodynamic forces on large, slender aerospace structures. This paper describes

Abstract: Some implementations provide a device (e.g., solar panel) that includes an active layer and a solar absorbance layer. The active layer includes a first

Abstract: Responder is designed to provide easier viewing and acknowledging of multiple messages. It gives the user a quick look at all recently received messages