Adaptive optics observations of small moons of Saturn
We report near-infrared observations of Prometheus and Janus taken on 9 and 13 November 2000 (UT) with the Palomar Adaptive Optics System on the 5-m Hale telescope at Palomar Observatory. Dione, Rhea, and Tethys were used as guide “stars ” for the adaptive optics system, and, though they were outsid...
Main Authors: | , , |
---|---|
Other Authors: | |
Format: | Text |
Language: | English |
Published: |
2002
|
Subjects: | |
Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.630.8449 http://ao.jpl.nasa.gov/Palao/Publications/Scientific/Adaptive_optics_observations_of_small_moons_of_saturn.pdf |
id |
ftciteseerx:oai:CiteSeerX.psu:10.1.1.630.8449 |
---|---|
record_format |
openpolar |
spelling |
ftciteseerx:oai:CiteSeerX.psu:10.1.1.630.8449 2023-05-15T18:22:38+02:00 Adaptive optics observations of small moons of Saturn Richard G. Dekany C Mitchell Troy Eric E. Bloemhof D The Pennsylvania State University CiteSeerX Archives 2002 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.630.8449 http://ao.jpl.nasa.gov/Palao/Publications/Scientific/Adaptive_optics_observations_of_small_moons_of_saturn.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.630.8449 http://ao.jpl.nasa.gov/Palao/Publications/Scientific/Adaptive_optics_observations_of_small_moons_of_saturn.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://ao.jpl.nasa.gov/Palao/Publications/Scientific/Adaptive_optics_observations_of_small_moons_of_saturn.pdf text 2002 ftciteseerx 2016-01-08T15:28:48Z We report near-infrared observations of Prometheus and Janus taken on 9 and 13 November 2000 (UT) with the Palomar Adaptive Optics System on the 5-m Hale telescope at Palomar Observatory. Dione, Rhea, and Tethys were used as guide “stars ” for the adaptive optics system, and, though they were outside the isoplanatic patch of the region of interest, they allowed significant correction of the atmospheric turbulence. Prometheus, which is usually impossible to observe from the ground due to scattered light from the A ring, was imaged at superior conjunction with Saturn. At the time of the observations, the rings of Saturn were blocked by the southern limb of the planet while the moon passed just 0.35 below the planet’s south pole. A K filter, in a methane absorption band, was used to suppress light from the disk of the planet, and template subtraction removed much of the scattered light from the A ring. Prometheus was found to be 21.9 0.1 ° of mean longitude behind the position predicted by Voyager-era ephemerides, consistent with the orbital lag discovered during the 1995 ring-plane crossing. © 2003 Elsevier Science (USA). All rights reserved. 1. Text South pole Unknown Hale ENVELOPE(-86.317,-86.317,-78.067,-78.067) Janus ENVELOPE(163.100,163.100,-71.067,-71.067) South Pole |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
ftciteseerx |
language |
English |
description |
We report near-infrared observations of Prometheus and Janus taken on 9 and 13 November 2000 (UT) with the Palomar Adaptive Optics System on the 5-m Hale telescope at Palomar Observatory. Dione, Rhea, and Tethys were used as guide “stars ” for the adaptive optics system, and, though they were outside the isoplanatic patch of the region of interest, they allowed significant correction of the atmospheric turbulence. Prometheus, which is usually impossible to observe from the ground due to scattered light from the A ring, was imaged at superior conjunction with Saturn. At the time of the observations, the rings of Saturn were blocked by the southern limb of the planet while the moon passed just 0.35 below the planet’s south pole. A K filter, in a methane absorption band, was used to suppress light from the disk of the planet, and template subtraction removed much of the scattered light from the A ring. Prometheus was found to be 21.9 0.1 ° of mean longitude behind the position predicted by Voyager-era ephemerides, consistent with the orbital lag discovered during the 1995 ring-plane crossing. © 2003 Elsevier Science (USA). All rights reserved. 1. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Richard G. Dekany C Mitchell Troy Eric E. Bloemhof D |
spellingShingle |
Richard G. Dekany C Mitchell Troy Eric E. Bloemhof D Adaptive optics observations of small moons of Saturn |
author_facet |
Richard G. Dekany C Mitchell Troy Eric E. Bloemhof D |
author_sort |
Richard G. Dekany |
title |
Adaptive optics observations of small moons of Saturn |
title_short |
Adaptive optics observations of small moons of Saturn |
title_full |
Adaptive optics observations of small moons of Saturn |
title_fullStr |
Adaptive optics observations of small moons of Saturn |
title_full_unstemmed |
Adaptive optics observations of small moons of Saturn |
title_sort |
adaptive optics observations of small moons of saturn |
publishDate |
2002 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.630.8449 http://ao.jpl.nasa.gov/Palao/Publications/Scientific/Adaptive_optics_observations_of_small_moons_of_saturn.pdf |
long_lat |
ENVELOPE(-86.317,-86.317,-78.067,-78.067) ENVELOPE(163.100,163.100,-71.067,-71.067) |
geographic |
Hale Janus South Pole |
geographic_facet |
Hale Janus South Pole |
genre |
South pole |
genre_facet |
South pole |
op_source |
http://ao.jpl.nasa.gov/Palao/Publications/Scientific/Adaptive_optics_observations_of_small_moons_of_saturn.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.630.8449 http://ao.jpl.nasa.gov/Palao/Publications/Scientific/Adaptive_optics_observations_of_small_moons_of_saturn.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766202043516583936 |