ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • LUNAR AND PLANETARY EXPLORATION  (3,213)
  • 1980-1984  (3,213)
  • 1
    facet.materialart.
    Unknown
    16-30 micron spectroscopy of Titan (1980)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: Titan has been observed from 16 to 30 micron with a resolution of 1 micron. Earlier broad-band data are consistent with the new measurements, which show that the disk integrated flux is nearly constant over the observed range of wavelengths. Limits on the CH4, H2, and N2 column densities and pressures at the bottom of the upper layer are derived. These indicate that if the atmosphere gas is CH4, an H2-CH4 mix, or N2, the inversion layer must be at pressures less than 30 millibars.
    Keywords: LUNAR AND PLANETARY EXPLORATION
    Type: Astrophysical Journal; vol. 236
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 2
    facet.materialart.
    Unknown
    1979J2 - Discovery of a previously unknown Jovian satellite (1980)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: Detailed examination of imaging data of Jupiter taken by Voyager 1 reveals a previously unknown satellite 1979J2. Analysis of the image on the Jovian disk indicates that it is not an atmospheric feature or the shadow of any known satellite. The orbital period is calculated at 16 hours 11 minutes 21.25 seconds + or - 0.5 second and the semimajor axis is 3.1054 Jupiter radii. The observed profile is roughly circular with a diameter of 80 kilometers. An albedo of approximately 0.05 is reported, which is similar to Amalthea's. The geometry of the observational situation is illustrated.
    Keywords: LUNAR AND PLANETARY EXPLORATION
    Type: Science; 210; Nov. 14
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 3
    facet.materialart.
    Unknown
    1979J3 - Discovery of a previously unknown satellite of Jupiter (1981)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: During a detailed search of Voyager 1 frames for additional observations of the satellite 1979J1, two small dark spots were observed in transit in several consecutive wide-angle frames of the Jovian atmosphere. The size, spacing, and motion of these pairs of dark spots indicated that they were the images of 1979J1 and its shadow. Subsequent analysis of images spanning 6 days, however, proved that the satellite observed in these Voyager 1 frames would have been occulted by Jupiter at the times of the Voyager 2 images of 1979J1 and was, therefore, a new satellite. It was subsequently found in transit on Voyager 2 images within 13 deg of the Voyager 1 prediction. Its period is 7 hrs 4 min 30 sec + or - 3 sec, and its mean distance is 1.793 Jupiter radii (Jupiter radius = 71,400 km). The observable profile appears to be roughly circular with a diameter of 40 km, and the albedo is approximately 0.05, similar to Amalthea's.
    Keywords: LUNAR AND PLANETARY EXPLORATION
    Type: Science; 212; June 19
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 4
    facet.materialart.
    Unknown
    21 cm maps of Jupiter's radiation belts from all rotational aspects (1980)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: Two-dimensional maps of the radio emission from Jupiter were made in December 1977 at a frequency of 1,412 MHz using the Westerbork telescope. Pictures in all four Stokes parameters have been obtained every 15 deg in longitude, each smeared over 15 deg of the planet's rotation. The maps have an E-W resolution of about 1/3 of the diameter of the disk and a N-S resolution 3 times less. The total intensity and linear polarization maps are accurate to 0.5% and the circularly polarized maps to 0.1% of the maximum intensities in I. The whole set of maps clearly shows the existence of higher order terms in the magnetic field of Jupiter.
    Keywords: LUNAR AND PLANETARY EXPLORATION
    Type: Astronomy and Astrophysics; 88; 1-2,; Aug. 198
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 5
    facet.materialart.
    Unknown
    4-day waves in the Venus atmosphere (1981)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: Ultraviolet albedo contrasts in the Venus atmosphere are probably large-scale atmospheric waves propagating slowly with respect to the rapid cloud-top zonal winds. Using a simple theoretical model and profiles of mean wind and thermal structure based on Pioneer Venus data, planetary-scale gravity waves with phase velocities matching the speeds of the UV markings are found. An upward-propagating wave, and waves trapped at cloud levels are proposed as candidates to explain the observed UV features.
    Keywords: LUNAR AND PLANETARY EXPLORATION
    Type: Icarus; 47; July 198
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 6
    facet.materialart.
    Unknown
    415-micron brightness temperature of Titan (1982)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: Broadband measurements were made of the 415-micron brightness temperature of Titan in February 1981 at the 3-m NASA IRTF using the University of Chicago submillimeter photometer. It is found that the 415-micron brightness temperature of Titan is 68 + or - 8.5 K if the observed radiation originates from a layer 2600 km in radius. This temperature lies within one standard deviation below the minimum tropopause temperature determined by Voyager.
    Keywords: LUNAR AND PLANETARY EXPLORATION
    Type: Astronomy and Astrophysics; 110; 2, Ju; June 198
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 7
    facet.materialart.
    Unknown
    47th Annual Meteorological Society Meeting (1984)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Keywords: LUNAR AND PLANETARY EXPLORATION
    Type: NASA-CR-175561 , NAS 1.26:175561 , LPI-CONTRIB-537 , Jul 30, 1984 - Aug 02, 1984
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 8
    facet.materialart.
    Unknown
    A 3.6-b.y.-old impact-melt rock fragment in the Plainview chondrite - Implications for the age of the H-group chondrite parent body regolith formation (1980)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Keywords: LUNAR AND PLANETARY EXPLORATION
    Type: Earth and Planetary Science Letters; 51; 2, De; Dec. 198
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 9
    facet.materialart.
    Unknown
    A brief review of the evidence for solar variability on the planets (1980)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: An outline of the most recent and complete reviews on the history of Martian climate is presented and compared to the history of terrestrial climate. Suggestions are made on how solar luminosity changes may have affected both planets. Observations of the albedo of Titan occurring over a solar cycle are discussed, and the solar mechanisms that might be responsible for the observed albedo changes are considered.
    Keywords: LUNAR AND PLANETARY EXPLORATION
    Type: Conference on The ancient sun: Fossil record in the earth, moon and meteorites; Oct 16, 1979 - Oct 19, 1979; Boulder, CO
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 10
    facet.materialart.
    Unknown
    A case for olivine on Mars (1984)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: Results are reported which support earlier proposals that olivine may be an important phase on Mars. The analysis is based on the similarity of the laboratory reflectance spectrum of ALHA 77005, a meteorite proposed to be from Mars, and the telescopic spectrum of a dark area north of Hellas on Mars (15 S, 300 W). The Mars spectrum is shown as well as a continuum spectrum that, when divided into the Mars spectrum, reveals the absorption feature produced by the surface rocks and soil.
    Keywords: LUNAR AND PLANETARY EXPLORATION
    Type: NASA. Washington Rept. of Planetary Geology Program, 1983; p 253-258
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...