Lowell Observatory astorbDB - Asteroid Search and Data Mining

Asteroid Search

Dynamical Type

Total Known: Total Plotted:

X-axis: Semi-Major Axis Y-axis: Inclination

Populations:

NEA Groups: High Error Objects Low Delta V Low Opposition Recent NEAs

Asteroid populations are based on computed dynamical types.

Advanced Query:

Order By:

Constraints:

Min.

Max.

Semi-major Axis (au):

Aphelion (au):

Perihelion (au):

Current Heliocentric Distance (au):

Eccentricity:

Inclination:

Absolute Magnitude:

Plot Settings:

X-Axis

Y-Axis

Color Scale on

Max Points

Observatory

UTC Date

Time Step

Duration

Supress Daylight

Supress Below Horizon

astorb.dat and astorb.dat.gz have permanently moved to https://ftp.lowell.edu/pub/elgb/astorb.dat and https://ftp.lowell.edu/pub/elgb/astorb.dat.gz, respectively. FTP access is no longer supported.

Lowell Observatory offers this website to assist with asteroid observation planning and to faciliate data mining across multiple surveys. Orbital solutions are calculated in-house based on Minor Planet Center observations.

Tool Descriptions

UpObjects

Interactive table of observable NEOs

AstEph

Asteroid and observatory-specific ephemeris generator.

AstFinder

Build finder chart for a given asteroid and time.

AstInfo

Return orbital and physical properties for a given asteroid.

AstObs

Observability chart for asteroids and observatory.

MOID List

Asteroids whose orbits are near one or more of the major planets.

Critical List Of Asteroids

Pre-defined lists of asteroids observable tonight.

Asteroid Orbital Elements

Access to, and information about, the astorb orbital elements database.

Hierarchical Observing Protocol

Generate asteroid observing priority list given a set of criteria.

Lowell Observatory offers these tools to assist with asteroid observation planning and to facilitate data mining across multiple surveys. Orbital solutions are calculated in-house based on Minor Planet Center observations.

This website is in the process of being upgraded and as such is in beta status; some tools may experience bugs. If a bug is particularly important, please direct concerns to asteroid@lowell.edu.

Recent Updates

For the full history of updates see the updates page.