Papers by John-David Bartoe
Acta Astronautica, 2005
Nearly six years after the launch of the first International Space Station element, and four year... more Nearly six years after the launch of the first International Space Station element, and four years after its initial occupation, the United States and our 16 international partners have made great strides in operating this impressive Earth orbiting research facility. This past year we have done so in the face of the adversity of operating without the benefit of the Space Shuttle. In his January 14, 2004, speech announcing a new vision for America's space program, President Bush affirmed the United States' commitment to completing construction of the International Space Station by 2010. The President also stated that we would focus our future research aboard the Station on the longterm effects of space travel on human biology. This research will help enable human crews to venture through the vast voids of space for months at a time. In addition, ISS affords a unique opportunity to serve as an engineering test bed for hardware and operations critical to the exploration tasks. NASA looks forward to working with our partners on International Space Station research that will help open up new pathways for future exploration and discovery beyond low Earth orbit. This paper provides an overview of the International Space Station Program focusing on a review of the events of the past year, as well as plans for next year and the future.
Space Station Freedom will accommodate researchers with interests in science, technology and comm... more Space Station Freedom will accommodate researchers with interests in science, technology and commercial applications. NASA sponsors will be responsible for selecting the U.S. researchers for Space Station Freedom. The four NASA sponsors are: Office of Space Science and Applications (OSSA), Office of Aeronautics and Space Technology (OAST), Office of Commercial Programs (OCP), and the Office of Space Flight (OSF). The areas of research responsibility for each sponsor are presented. The researcher solicitation vehicles used by OSSA and OAST and the methodology for researchers seeking sponsorship from OCP and OSF as well as the pricing policy are discussed. Descriptions of flight planning, payload integration and operations functions are presented. Three categories of payloads and their respective payload integration times are discussed. Researchers are advised to contact a NASA sponsor and a source which lists the points of contact for the NASA sponsors is noted.
The progress made in utilization planning for the redesigned Space Station Freedom (SSF) concept ... more The progress made in utilization planning for the redesigned Space Station Freedom (SSF) concept is described. Consideration is given to the SSF user capabilities, the strategic planning process, the strategic planning organizations, and the Consolidated Operations and Utilization Plan (COUP, which will be released in January 1993) as well as to the COUP development process and implementation. The process by which the COUP will be produced was exercised in the international Multilateral Strategic and Tactical Integration Process (MUSTIP) simulation. The paper describes the MUSTIP simulation and its activities along with MUSTIP findings and recommendations.
The Astrophysical Journal, 1988
The Astrophysical Journal, 1984
ABSTRACT
The first phase of the International Space Station construction has been completed, and research ... more The first phase of the International Space Station construction has been completed, and research has begun. Russian, U.S., and Canadian hardware is on orbit, and Italian logistics modules have visited often. With the delivery of the U.S. Laboratory, Destiny, significant research capability is in place, and dozens of U.S. and Russian experiments have been conducted. Crew members have been on orbit continuously since November 2000. Several "bumps in the road" have occurred along the way, and each has been systematically overcome. Enormous amounts of hardware and software are being developed by the International Space Station partners and participants around the world and are largely on schedule for launch. Significant progress has been made in the testing of completed elements at launch sites in the United States and Kazakhstan. Over 250,000 kilograms of flight hardware have been delivered to the Kennedy Space Center and integrated testing of several elements wired together ...
54th International Astronautical Congress of the International Astronautical Federation, the International Academy of Astronautics, and the International Institute of Space Law, 2003
AIP Conference Proceedings, 2000
Research onboard the International Space Station begins this year, 2000, shortly after the launch... more Research onboard the International Space Station begins this year, 2000, shortly after the launch and assembly of the U.S. Laboratory ``Destiny.'' The International Space Station will house a broad range of research disciplines; more than any space or ground laboratory in history. Planning for this diverse research activity begins with a strategic plan looking forward over the next five years.
Space Station Freedom will accommodate researchers with interests in science, technology and comm... more Space Station Freedom will accommodate researchers with interests in science, technology and commercial applications. NASA sponsors will be responsible for selecting the U.S. researchers for Space Station Freedom. The four NASA sponsors are: Office of Space Science and Applications (OSSA), Office of Aeronautics and Space Technology (OAST), Office of Commercial Programs (OCP), and the Office of Space Flight (OSF). The
Shuttle Pointing of Electro-Optical Experiments, 1981
Astrophysics and Space Science, 1982
An Image Drift Compensation System has been designed for a solar pointed space borne telescope an... more An Image Drift Compensation System has been designed for a solar pointed space borne telescope and has performed successfully on two sounding rocket flights, yielding new scientific results. The system employs limb-sensing photodiodes at the telescope focal plane and provides drift compensation to better than 0.1 arc sec. A variation of the system will be used on the Shuttle/Spacelab 2
Astrophysical Letters & Communications, 1988
The Solar UV Spectral Irradiance Monitor experiment flown on the Spacelab-2 mission measured the ... more The Solar UV Spectral Irradiance Monitor experiment flown on the Spacelab-2 mission measured the absolute solar spectral irradiance in the ultraviolet spectral range 120 nm-400 nm with two spectral passbands, 0.15 and 5 nm. The photometric error was + or - 5.0 percent relative to three different absolute calibration standards. Calibration procedures and error budget are discussed. The results are
Journal of the Optical Society of America, 1975
Tandem use of two classical concave gratings makes it possible to design a double-dispersion spec... more Tandem use of two classical concave gratings makes it possible to design a double-dispersion spectrograph that is essentially free of astigmatism and coma over a large wavelength range near normal incidence. The first grating is used as a Wadsworth collimator. Light of different wavelengths is dispersed by the Wadsworth collimator so that it illuminates different portions of the second grating. The second grating is placed so that it acts as a Wadsworth camera, in which the light bundle of a certain wavelength illuminating a particular section of the second grating is diffracted along the local normal of that section. In this way, the Wadsworth condition for stigmatic and coma-free imaging is almost fulfilled for all wavelengths. Only two reflecting surfaces are needed.-The instrument is a double-dispersion spectrograph with additive dispersion. It does not use an intermediate slit, but has the stray-light-suppression characteristics of such a mount. A comparison of its imaging capabilities with other stigmatic concave-grating spectrographs is presented.
Solar Physics, 1974
High resolution spectroheliograms in the ultraviolet emission lines He I, He I1, O IV, O v, and N... more High resolution spectroheliograms in the ultraviolet emission lines He I, He I1, O IV, O v, and Ne vii have been photographed during a sounding rocket flight. Simultaneously, broad band filtergrams of the far ultraviolet solar corona were obtained from the same flight. This paper describes qualitatively the spatial distribution of the UV emission. A comparison with an Ha filtergram is made. The most significant results can be summarized as follows: We find most of the ultraviolet emission concentrated around spicules, with different degree of concentration, decreasing with higher temperatures. 4 different areas of ultraviolet emission can be distinguished. (1) The normal network, bright in all UV emission lines from the chromosphere into the corona. (2) The coronal holes, bright in all UV emission lines up to 600000K but depressed in coronal lines from 1 million degrees upward. (3) The coronal depressions near active centers, absence of all ultraviolet emissions and Active regions, where ultraviolet emission comes from plages, sunspots and coronal loops. High non-thermal Doppler velocities can be found in certain plage kernels around 105 to 2 • 105 K. Sunspots are bright in the ultraviolet, but do not exhibit He I or He I1 emission. The corona above sunspots is weak. Sunspots do not show high non-thermal Doppler velocities. The He I and He u emission does not follow either chromospheric, transition zone or coronal pattern; one can recognize some typical behavior of each.
Science, 1987
The High Resolution Telescope and Spectrograph was flown on the Spacelab-2 shuttle mission to per... more The High Resolution Telescope and Spectrograph was flown on the Spacelab-2 shuttle mission to perform extended observations of the solar chromosphere and transition zone at high spatial and temporal resolution. Ultraviolet spectroheliograms show the temporal development of macrospicules at the solar limb. The C IV transition zone emission is produced in discrete emission elements that must be composed of exceedingly fine (less than 70 kilometers) subresolution structures.
Acta Astronautica, 2002
The International Space Station will provide a "World Class" environment for microgravity researc... more The International Space Station will provide a "World Class" environment for microgravity research. Ensuring this environment requires care in all aspects of its design. These aspects include consideration of the acceleration at near-orbit-tune-periods, such as gravity gradients and station drag, as well as controlling station structural dynamic modes, mechanical disturbances, and crew disturbances. Station designers must also ensure that the required acceleration environment is provided for long duration. The microgravity requirements placed on ISS will be reviewed, along with major considerations for achieving such an environment. Further, a description of the Space Station program strategy and implementation for meeting those requirements will be discussed. ?
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Papers by John-David Bartoe