JPL Small-Body Database Search Engine

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JPL Small-Body Database Search Engine

Use this search engine to generate custom tables of orbital and/or physical parameters for all asteroids and comets (or a specified sub-set) in our small-body database. If this is your first time here, you may find it helpful to read our tutorial. Otherwise, simply follow the steps in each section: "Search Constraints", "Output Fields", and finally "Format Options". If you want details for a single object, use the Small Body Browser instead.

Search Constraints:

help

Step 1:

optionally limit your results by selecting one or more constraint below

Limit by object type/group:

object group:	All objects	NEOs	PHAs
object kind:	All objects	Asteroids	Comets
numbered state:	All objects	Numbered	Unnumbered

Limit to selected orbit class(es):

------------------------------ Asteroid Orbit Classes ------------------------------

---------- Comet Orbit Classes ----------

Atira	Inner Main-belt Asteroid	TransNeptunian Object
Aten	Main-belt Asteroid	Parabolic Asteroid
Apollo	Outer Main-belt Asteroid	Hyperbolic Asteroid
Amor	Jupiter Trojan	Asteroid (other)
Mars-crossing Asteroid	Centaur

	Hyperbolic Comet		Encke-type Comet
	Parabolic Comet		Chiron-type Comet
	Jupiter-family Comet*		Jupiter-family Comet
	Halley-type Comet*		Comet (other)

Limit by object characteristics:

no constraints

Output Fields:

help

Step 2:

select desired output fields from the lists below or pick from defined sets
(you can add fields one at a time or in groups)

Object Fields:	Orbital and Model Parameter Fields:
Pre-defined field sets:

Step 3:

add selected output fields (above) to your table (repeat steps 2 and 3 as needed)

no fields selected
(object count only)

Format Options:

help

Step 6:

select desired output format (for HTML: optionally limit rows-per-page and output precision)
then press the button below to display your results

Table Format: [ help? ]	HTML (default) CSV (download)		reduced-precision (compact) full-precision (default) [HTML only]

2019-May-17 23:53 UT
(server date/time)

Site Manager:	Ryan S. Park
Webmaster:	Alan B. Chamberlin

object internal database ID
object primary SPK-ID
object full name/designation
object primary designation
object IAU name
comet designation prefix
Near-Earth Object (NEO) flag (Y/N)
Potentially Hazardous Asteroid (PHA) flag (Y/N)
[ H ] absolute magnitude parameter
[ G ] magnitude slope parameter (default is 0.15)
[ M1 ] comet total magnitude parameter
[ M2 ] comet nuclear magnitude parameter
[ K1 ] comet total magnitude slope parameter
[ K2 ] comet nuclear magnitude slope parameter
[ PC ] comet nuclear magnitude law - phase coefficient
object diameter (from equivalent sphere) (km)
object bi/tri-axial ellipsoid dimensions (km)
geometric albedo
rotation period (h)
[ GM ] standard gravitational parameter: product of the mass (M) and gravitational constant (G) (km^3/s^2)
color index B-V magnitude difference
color index U-B magnitude difference
color index I-R magnitude difference
spectral taxonomic type (SMASSII)
spectral taxonomic type (Tholen)
1-sigma uncertainty in absolute magnitude H
1-sigma uncertainty in object diameter (km)

orbit solution ID
epoch of osculation in Julian day form (TDB)
epoch of osculation in modified Julian day form (TDB)
epoch of osculation in calendar date/time form (TDB)
equinox of reference frame
[ e ] eccentricity
[ a ] semi-major axis (au)
[ q ] perihelion distance (au)
[ i ] inclination; angle with respect to x-y ecliptic plane (deg)
longitude of the ascending node (deg)
argument of perihelion (deg)
[ M ] mean anomaly (deg)
[ Q ] aphelion distance (au)
[ n ] mean motion (deg/d)
time of perihelion passage (TDB)
time of perihelion passage (ET)
sidereal orbital period (d)
sidereal orbital period (years)
Earth Minimum Orbit Intersection Distance (au)
Earth Minimum Orbit Intersection Distance (LD)
Jupiter Minimum Orbit Intersection Distance (au)
Jupiter Tisserand Invariant
eccentricity (1-sigma uncertainty)
semi-major axis (1-sigma uncertainty) (au)
perihelion distance (1-sigma uncertainty) (au)
inclination (1-sigma uncertainty) (deg)
long. of the asc. node (1-sigma uncertainty) (deg)
argument of perihelion (1-sigma uncertainty) (deg)
mean anomaly (1-sigma uncertainty) (deg)
aphelion distance (1-sigma uncertainty) (au)
mean motion (1-sigma uncertainty) (deg/d)
time of peri. passage (1-sigma uncertainty) (d)
sidereal orbital period (1-sigma uncertainty) (d)
orbit classification
name of person (or institution) who computed the orbit
number of days spanned by the data-arc (d)
date of first observation used in the orbit fit (UT)
date of last observation used in the orbit fit (UT)
number of observations (all types) used in fit
number of delay-radar observations used in fit
number of Doppler-radar observations used in fit
orbit condition code (MPC 'U' parameter)
normalized RMS of orbit fit (arcsec)
2-body dynamics used flag (T/F)
[ A1 ] non-grav. radial parameter
[ A2 ] non-grav. transverse parameter
[ A3 ] non-grav. normal parameter
[ DT ] non-grav. peri.-maximum offset (d)