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{{val|233000}} orbits were computed in August 2021 and in the last 12 months more than 3.3 million orbits have been computed.<ref name=jpl-sso/> ==> 1.1 million * (every 6 months + DE441) |
Most objects such as asteroids get a two-body solution (Sun+object) recomputed twice a year. Comets generally have their two-body orbits computed at a time near the perihelion passage (closest approach to the Sun) as to have the two-body orbit more reasonably accurate for both before and after perihelion. |
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{{short description|Astronomy database}}
The '''JPL Small-Body Database''' ('''SBDB''') is an [[astronomy]] [[database]] about [[small Solar System body|small Solar System bodies]]. It is maintained by [[Jet Propulsion Laboratory]] (JPL) and [[NASA]] and provides data for all known [[asteroid]]s and several [[comet]]s, including [[orbit]]al parameters and diagrams, physical diagrams, and lists of publications related to the small body. The database is updated daily when new observations are available.<ref>
{{cite web
|url=http://ssd.jpl.nasa.gov/sbdb.cgi
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|publisher=[[NASA]]/[[Jet Propulsion Laboratory|JPL]]
|access-date=2012-03-19
}}</ref> In April 2021 the JPL Small-Body Database Browser started using planetary [[ephemeris]] ([[Jet Propulsion Laboratory Development Ephemeris#Ephemerides in the series|DE441]]) and small-body perturber SB441-N16. Most objects such as asteroids get a [[Osculating orbit|two-body solution]] (Sun+object) recomputed twice a year. Comets generally have their two-body orbits computed at a time near the perihelion passage (closest approach to the Sun) as to have the two-body orbit more reasonably accurate for both before and after perihelion.
On 27 September 2021 the JPL Solar System Dynamics website underwent a significant upgrade.
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