Data Set Information
DATA_SET_NAME 2MASS ASTEROID AND COMET SURVEY V1.0
DATA_SET_ID EAR-A-I0054/I0055-5-2MASS-V1.0
NSSDC_DATA_SET_ID
DATA_SET_TERSE_DESCRIPTION
DATA_SET_DESCRIPTION Data Set Overview : The Two Micron All-Sky Survey (2MASS) carried out a survey of the entire sky at J (1.25 microns), H (1.65 microns), and Ks (2.17 microns) during the years 1997-2001. The survey was conducted by two nearly identical telescopes and instruments, one at the Whipple Observatory on Mt. Hopkins, in Arizona, and one at the Cerro Tololo Interamerican Observatory on Cerro Tololo in Chile. A single data processing pipeline was used for the entire survey. Some of the sources detected in 2MASS were positionally associated with known solar system bodies. There were 15,964 associations with 12,219 asteroids, 46 associations with 39 known comets, 3 associations with 3 planets, and 14 associations with 10 planetary satellites. The 2MASS data on these sources, including J, H, and Ks magnitudes, are in the three data files of this data set. Data files also include the positional, orbital, and brightness data used to make the associations, flags indicating the quality and processing status of each entry, and internal designations allowing cross-reference of the sources to the 2MASS Point Source Catalog and Extended Source Catalog. Orbital elements used to predict the positions of the asteroids, comets, planets, and satellites is given in the data files in the form of p and q position vectors. Detection of unknown solar system bodies in the 2MASS data is technically possible, but has not been carried out for this data set. Further documentation of the 2MASS survey can be found at: Cutri, R.M., et al. 2004. Explanatory Supplement to the 2MASS All Sky Data Release. http://www.ipac.caltech.edu/2mass/releases/allsky/doc. Sykes, M.V., R.M. Cutri, J.W. Fowler, D.J. Tholen, M.F. Skrutskie, S. Price, and E.F. Tedesco 2000. The 2MASS asteroid and comet survey. Icarus 146, 161-175.
DATA_SET_RELEASE_DATE 2005-06-16T00:00:00.000Z
START_TIME 1997-06-07T12:00:00.000Z
STOP_TIME 2001-02-15T12:00:00.000Z
MISSION_NAME SUPPORT ARCHIVES
MISSION_START_DATE 2004-03-22T12:00:00.000Z
MISSION_STOP_DATE N/A (ongoing)
TARGET_NAME ASTEROID
TARGET_TYPE ASTEROID
INSTRUMENT_HOST_ID OBS055T6
OBS320T13
INSTRUMENT_NAME 2MASS CAMERA - NORTH
2MASS CAMERA - SOUTH
INSTRUMENT_ID I0054
I0055
INSTRUMENT_TYPE IMAGER
NODE_NAME Small Bodies
ARCHIVE_STATUS SUPERSEDED
CONFIDENCE_LEVEL_NOTE Confidence Level Overview : Because the association of asteroid positions and 2MASS sources is blind, there is always the chance of association with background astrophysical sources, particularly at low galactic latitudes. Stars near the galactic plane will tend to be reddened by foreground dust, giving rise to a redward spike in the (J-H) (H-Ks) color-color plot. Contamination from galactic stars in the 2MASS asteroid associations is shown by such a redward spike in the color-color plot of the asteroid associations. For further discussion of the contamination problem, see [SYKESETAL2002]: Sykes, M.V., R.M. Cutri, J.M. Fowler, B. Nelson, D.J. Tholen, M.F. Skrutskie, and S. Price, 2MASS observations of the solar system, in the Proceedings of Asteroids, Comets, Meteors (ACM 2002), Technical University Berlin, Berlin, Germany, pp. 484-484, 2002. The confidence level of the positional association of sources with solar system bodies and of the photometric and astrometric measurements is indicated by flags within the data tables. These flags are defined in the file flagdef.txt in the document directory of the data set.
CITATION_DESCRIPTION Sykes, M.V., Cutri, R,M., Skrutskie, M.F., Fowler, J.W., Tholen, D.J., Painter, P.E., Nelson, B., and Kirkpatrick, D.J., 2MASS Asteroid and Comet Survey V1.0. EAR-A-I0054/I0055-5-2MASS-V1.0. NASA Planetary Data System, 2005.
ABSTRACT_TEXT This data set includes J, H, and Ks magnitudes from the Two Micron All-Sky Survey (2MASS) for sources which were positionally associated with asteroids, comets, planets, and planetary satellites.
PRODUCER_FULL_NAME CAROL NEESE
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