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Miner, E.

Publications and source records attributed to Miner, E..

At least 19 records
All sourcesNASA NTRSDOE OSTI
NASA NTRS2002

Working with scientists in the A.A.S. division for planetary sciences

Planetary scientists represent an invaluable resource for information on and understanding of the solar system for all aspects of public communication.Yet most scientists have little time, funding, or connections to enable them to use that expertise. The OSS EPO Support Network, with its theme-based forums and regional brokers/facilitators, is already well equipped to assist scientists, non-intrusively, to establish partnerships with those who need their scientific expertise.

DPS↗
NASA NTRS1976

Five-color photoelectric photometry of asteroid 433 Eros

Five-color (UVBGR) photoelectric light curves of Eros are presented which were obtained on nine nights during the asteroid's 1974/75 close apparition. Indications that three reversals occurred in the relative depths of the two minima between late December 1974 and late January 1975 are noted along with definite evidence of phase reddening. The maximum amplitude observed was 1.44 magnitudes, and the absolute visual magnitude at primary maximum (corrected to zero phase and to 1 AU from the earth and the sun) was about 10.8 magnitudes. Since the observations indicate that Eros has no significant rotational color variations, it is suggested that the light-curve amplitudes are due primarily to the asteroid's shape and to shadowing effects. Based on its colors relative to the sun, it is concluded that Eros appears to be an S-type asteroid.

Miner, E.↗
NASA NTRS1974

Infrared observations of Phobos from Mariner 9

Radiometric measurements of Phobos at 10 and 20 microns show that the surface is covered by a material whose conductivity is extremely low, around .000001 cal per cm per sec per deg K. It is concluded that Phobos is covered with a layer of dust at least 1 mm thick.

Gatley, I.↗
NASA NTRS1973

Another possible post-eclipse brightening of Io.

Observation of an apparent posteclipse brightening of the Galilean satellite Io from two different observatories on June 25, 1971, employing the technique of area scanning in the ultraviolet. An apparent brightening was observed which amounted to about 0.2 mag at 3500 A and 0.15 mag at 4000 A. It is suggested that the brightening was a transient partial covering of high-albedo material where the contrast is by far greatest in the ultraviolet.

O'Leary, B.↗
NASA NTRS1973

Infrared radiometry experiment

The objectives of the experiment are discussed. These objectives were: (1) measure the thermophysical properties of the Martian surface on a global scale; (2) isolate large-scale irregularities in the global picture; and (3) isolate small-scale hot or cold spots on the surface.

Chase, S. C.↗
NASA NTRS1973

Preliminary report on infrared radiometric measurements from Mariner 9

The results of the preliminary analysis of the Mariner 9 radiometer data are: (1) Gross thermal characteristics of Mars agreed qualitatively with those observed in 1969: (2) a dust storm changed the thermal picture of Mars radically with average dayside temperatures lower by about 20K than without the dust storm; (3) over large-scale physiographic visual features, no univocal correlation between albedo and thermal inertia seems to exist, and (4) surface particle sizes derived from observed thermal inertias vary between 0.006 cm and 0.5 cm.

Kieffer, H. H.↗
NASA NTRS1973

Preliminary report on infrared radiometric measurements from the Mariner 9 spacecraft.

Preliminary 10- and 20-micron brightness temperatures of Mars are presented. More than 35% of the Martian surface was observed with a resolution better than 100 km. On the whole, the results confirm the thermal properties derived from the Mariner 6 and 7 radiometers, although the temperatures, on the average, were cooler and shifted with respect to the Martian day during the dust storm. Thermal inertias and radiometric albedos were derived for many areas; no clear correlation exists between these properties. Thermal structure again was found at the spatial limit of the radiometer; no cases were found in which it was necessary to invoke internal heat sources.

Kieffer, H. H.↗
NASA NTRS1972

Infrared thermal mapping experiment - The Viking Mars Orbiter.

The Mars infrared thermal mapper (IRTM) will be carried on the scan platform of the orbiter of the Viking 1975 mission. The IRTM is a multichannel radiometer with several detectors in each of six spectral regions. The spectral channels are selected to be sensitive to surface emissivity variations and provide good temperature resolution over the entire range of Martian temperatures. These observations will allow determination of the surface kinetic temperature and thermal balance, and by coverage of the dark hemisphere, a search for regions with anomalous cooling can be made. Observations of ground frosts or clouds will help to determine their composition, and in the case of extensive H2O frosts, will allow the local water vapor pressure to be estimated.

Kieffer, H. H.↗
NASA NTRS1972

Infrared radiometry experiment on Mariner 9.

A two-channel IR radiometer similar to that carried on Mariners 6 and 7 was included on Mariner 9 in order to extend and improve the surface coverage and spatial resolution obtained on the earlier flights. The minimum brightness temperature observed by the Mariner 9 radiometer over the shrinking south polar cap, slightly after Martian southern midsummer, is at least 25 K above the temperature that would correspond to frozen carbon dioxide.

Chase, S. C., Jr.↗