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Water, Space and the Circular Economy: Nasa Satellites Contribute to Understanding How Freshwater Moves on Our Planet
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NASA Satellite Servicing and the OSAM-1 Mission
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Leveraging NASA satellite data to improve air quality monitoring for the CDC National Environmental Public Health Tracking Network
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Connecting a Community of Observers Directly to NASA Satellites
The Global Learning and Observations to Benefit the Environment (GLOBE) program is an international science and education initiative that gives students and the public worldwide an opportunity to participate in data collection and the scientific process and to contribute meaningfully to our understanding of Earth and the global environment. GLOBE launched in 1995, with the vision of bringing a worldwide community of students, teachers, scientists, and citizens together to better understand, sustain, and improve Earth's environment at local, regional, and global scales (https://www.globe.gov/about/overview).
Publishing a Knowledge Graph for NASA Satellite Datasets and Scientific Publications to Advance Open Science
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Meteorological infrared instruments for satellites
NASA satellites meteorological IR instruments, considering purpose, design, operation and performance
THE NASA COMMUNICATIONS SATELLITE PROGRAMME
Nasa communication satellite programs, covering both active and passivesatellites and their accomplishments to date
NASA COMMUNICATIONS SATELLITE DEVELOPMENTS
Nasa program survey in the field of communications satellites is presented, discussing syncom, echo, and relay satellite research
The nasa geodetic satellite program.
NASA geodetic satellite program, including Earth gravitational field determination, geometric surveying and triangulation net improvement
Connecting Federal Agencies to Satellite Earth Observations: NASA’s Satellite Needs Working Group Assessment Process
The Satellite Needs Working Group (SNWG), part of the U.S. Group on Earth Observations (USGEO), surveys agencies across the U.S. Government to identify the satellite Earth observations each agency needs to fulfill its high-priority objectives and responsibilities. Around 20 civilian agencies participate in the SNWG survey every two years. After receiving the surveys, the National Aeronautics and Space Administration (NASA) conducts an in-depth evaluation of each agency's needs in collaboration with fellow satellite Earth data providers, the National Oceanic and Atmospheric Administration (NOAA) and the U.S. Geological Survey (USGS). This assessment process, which takes place over an eight-month period, is divided into distinct phases. NASA first assembles an assessment team with the necessary subject matter expertise to evaluate each submitted need. An in-depth interview with each submitting agency then follows, featuring discussion of current and upcoming satellite missions as well as potential new activities that NASA, NOAA, and/or USGS could undertake to meet the agency's needs. The assessment teams then further evaluate these potential activities or solutions to identify how many agencies would benefit and estimate how much their level of satisfaction would increase. Solutions expected to have broad-reaching and significant agency benefits are proposed by NASA for funding. SNWG agencies receive an assessment report for each submitted need, in which the tri-agency assessment teams provide a detailed evaluation of the agency need, information on relevant satellite missions, and links to specific datasets or training resources. The SNWG Management Office at NASA’s Interagency Implementation and Advanced Concepts Team (IMPACT) contributes to NASA’s SNWG assessment in a variety of capacities, including statistical analysis of the survey responses to identify trends and similar needs across multiple agencies. The Management Office also provides analytics for the new proposed solutions, demonstrating and quantifying their potential value. For activities that receive funding, the Management Office manages the implementation process and works to maximize the benefit to SNWG agencies via a Stakeholder Engagement Program.
A Dynamic Optimization Technique for Siting the NASA-Clark Atlanta Urban Rain Gauge Network (NCURN)
NASA satellites and ground instruments have indicated that cities like Atlanta, Georgia may create or alter rainfall. Scientists speculate that the urban heat island caused by man-made surfaces in cities impact the heat and wind patterns that form clouds and rainfall. However, more conclusive evidence is required to substantiate findings from satellites. NASA, along with scientists at Clark Atlanta University, are implementing a dense, urban rain gauge network in the metropolitan Atlanta area to support a satellite validation program called Studies of PRecipitation Anomalies from Widespread Urban Landuse (SPRAWL). SPRAWL will be conducted during the summer of 2003 to further identify and understand the impact of urban Atlanta on precipitation variability. The paper provides an. overview of SPRAWL, which represents one of the more comprehensive efforts in recent years to focus exclusively on urban-impacted rainfall. The paper also introduces a novel technique for deploying rain gauges for SPRAWL. The deployment of the dense Atlanta network is unique because it utilizes Geographic Information Systems (GIS) and Decision Support Systems (DSS) to optimize deployment of the rain gauges. These computer aided systems consider access to roads, drainage systems, tree cover, and other factors in guiding the deployment of the gauge network. GIS and DSS also provide decision-makers with additional resources and flexibility to make informed decisions while considering numerous factors. Also, the new Atlanta network and SPRAWL provide a unique opportunity to merge the high-resolution, urban rain gauge network with satellite-derived rainfall products to understand how cities are changing rainfall patterns, and possibly climate.
THE CURRENT NASA METEOROLOGICAL SATELLITE PROGRAM
Current nasa meteorological satellite program
Analysis of the DebriSat Fragments and Comparison to the NASA Standard Satellite Breakup Model
Existing DOD and NASA satellite breakup models are based on a key laboratory test, the 1992 Satellite Orbital debris Characterization Impact Test, which has supported many applications and matched on-orbit events involving older satellite designs reasonably well over the years. In 2014, the NASA Orbital Debris Program Office, in collaboration with the Air Force Space and Missile Systems Center, The Aerospace Corporation, and the University of Florida, conducted a hypervelocity impact test using a high-fidelity, mock-up satellite, DebriSat, in controlled and instrumented laboratory conditions to update and improve these models. DebriSat is representative of present-day, low Earth orbit satellites, having been constructed with modern spacecraft materials and techniques. The DebriSat fragment ensemble provided a variety of shapes, bulk densities, and dimensions. Fragments down to 2 mm in size are being characterized by their physical and derived properties. The data will inform updates to the current NASA Standard Satellite Breakup Model (SSBM), which was formulated using laboratory and ground-based measurements of on-orbit fragmentation events to describe an average breakup for spacecraft and upper-stage collisions and explosions. Although individual fragment collection and characterization is still ongoing, this paper will present the status of the DebriSat fragment data analysis including cumulative characteristic length and cumulative mass distributions, area-to-mass distributions, and characteristic length versus mass distributions. Additionally, comparisons to the NASA SSBM will be presented.
Telemetry processing for NASA scientific satellites
Telemetry processing for NASA scientific satellites
The current nasa communications satellite program.
Communication satellites in NASA program describing types and functions
NASA airborne satellite instrumentation calibrator (NASIC) technical reference
The NASA Satellite Instrumentation Calibrator (NASIC) is a visible and near-infrared spectrometer used to calibrate various satellite instruments by underflying those instruments in a NASA ER-2 aircraft. The calibration instrument's hardware and software are documented. The design, operation, and function of an Ebert-Fastie monochronomator, which by means of a moveable diffraction grating, becomes a visible and near-infrared spectrometer used to calibrate satellite-borne instruments by high altitude underflights in the NASA ER-2.
Second Shuttle Join NASA's STS Fleet: Challenger Launches First New Tracking Satellite
NASA made a major stride in readying a second delivery vehicle for its Space Transportation System (STS) fleet with the perfect landing of Shuttle Orbiter Challenger at Edwards Air Force Base, California, April 9, 1983. Besides being the first flight test of Challenger's performance, the mission marked the orbiting of the first spacecraft in NASA's new Tracking and Data Relay Satellite System (TDRSS). The new family of orbiting space communications platforms is essential to serve future Shuttle missions. Although the Inertial Upper Stage (IUS) second stage engine firing failed to place TDRS in its final 35,888 kilometer (22,300 mile) geosynchronous orbit, its release from the orbiter cargo bay went as planned. Launch officials were confident they can achieve its planned orbit in a matter of weeks.