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Data Set Overview
=================
This data set includes 3-micron spectra of asteroids and other
small bodies taken by Andy Rivkin and collaborators. The
spectra include both measured reflectance and error bars at
points in the range 1.25-3.35 microns. 46 spectra of 33
different asteroids, plus Phobos and Deimos, are included.
One asteroid, 77 Frigga, is included in this data set but was
not mentioned in the published papers.
Modification History
====================
This dataset was first ingested into the PDS archives following
the March 1998 asteroid data sets review.
In March 2002 the data were re-examined as part of a general
review of holdings. As a result, the following changes were
made:
o The data from tables I ('Targets Observed') and II
('Observational Circumstances') of Rivkin, et al. (1995)
were incorporated into the main data file.
o The main data file was split into (additional) separate
files for each object. The data for the 1991 and 1993
observations of 44 Nysa were placed in separate files.
o As much information as could be gleaned from the published
article was used to create the instrument catalog file now
archived with this data. PDS cataloging fields have been
filled in as far as possible.
o This data set catalog file was updated to contain the
modification list and the complete list of specific
target names for objects observed.
In 2003 the data set was updated with the inclusion of Rivkin
3-micron data published since the last update.
Parameters
==========
The data table lists asteroid number, a spectrum identifier,
and the measured reflectance and one-standard-deviation error
at 1.25, 1.65, 2.20, 2.95, 3.12 and 3.35 microns.
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