# Data from: Analysis of Four-band WISE Observations of Asteroids --- This dataset describes a curated set of Wide-field Infrared Survey Explorer (WISE) observations of 4420 asteroids. We selected a small, high-quality subset of the data from the [WISE All-Sky Data Release](http://doi.org/10.26131/IRSA139). These data were obtained during the WISE full-cryogenic mission phase, from 7 January 2010 to 6 August 2010. This subset includes only observations of 4420 asteroids for which there are at least three high-quality observations in each one of the four WISE wavelength bands. We added ancillary data to each observation by querying the [NASA JPL HORIZONS service](https://ssd.jpl.nasa.gov/?horizons). The data collection procedures are described in detail by N. Myhrvold, P. Pinchuk, J. L. Margot. Analysis of four-band WISE observations of asteroids. Planetary Science Journal, 3, 2022. ## Description of the data and file structure The data are provided as comma-separated values (CSV). The field names, (types), [provenance], and descriptions are as follows: - wavelength (str) [WISE]: WISE band (w1, w2, w3, or w4) - ras (float) [HORIZONS]: heliocentric distance in astronomical units - rao (float) [HORIZONS]: geocentric distance in astronomical unit - phase_ang (float) [HORIZONS]: phase angle in degrees - name (str) [WISE]: asteroid number or provisional designation - mjd (float) [WISE]: modified Julian date of the single-exposure covering the source - m_flux (float) [WISE]: magnitude measured with profile-fitting photometry - err (float) [WISE]: profile-fit photometric measurement uncertainty in mag units - H (float) [HORIZONS]: absolute visual magnitude - G (float) [HORIZONS]: magnitude slope parameter - data_filter_group (str) [authors]: internal description of data subset - dist_x (float) [WISE]: distance in arcsec between each moving object source and its potential match in the WISE All-Sky Single Exposure (L1b) Source Table - nb (int) [WISE]: number of blend components used in each fit - na (int) [WISE]: active deblend flag (=1 if actively deblended) - sso_flg (int) [WISE]: known solar system object association flag (0=no association, >0=association) - Epoch_ID (int) [authors]: zero-based index of cluster of observations (clusters were formed when consecutive observations were more than 30 days apart) ## Sharing/Access information Data was derived from the following sources: - [WISE All-Sky Data Release](http://doi.org/10.26131/IRSA139) - [NASA JPL HORIZONS service](https://ssd.jpl.nasa.gov/?horizons) ## Code/Software N/A. The data are provided as comma-separated values (CSV).