Recent MPECs
σ > 10" Or
Phase < 1°
Low dV


Tool Descriptions


UpObjects

Interactive table of observable NEOs.

AstEph

Asteroid and observatory-specific ephemeris generator.

AstInfo

Return all known designations for a given asteroid.

AstObs

Observability chart for a given asteroid and observatory.

AstFinder

Build finder chart for a given asteroid and time.

AstPlot

Plot field stars and asteroids at a given time and location.

Hierarchical Observation Protocol

Generate prioritized list of observable asteroids based on observability criteria.

MOID List

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

Critical List of Asteroids

List of asteroids in need of observation due to large ephemeris uncertainty.

Asteroid Orbital Elements

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

LONEOS Observations

Access the archived LONEOS asteroid observations database.

Star Catalogs

Query tool to access the USNO and PPM star catalogs.

Lowell Observatory offers these tools 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.

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

Date Update
September, 29, 2017 Dynamical type is now included in the database. UI overhaul. New important lists tickers on home page. New updates page with full history of updates. UpObjects plots. Bug fixes.
January, 09, 2017 Reorganized home page. Updates to backend database hardware and schema. Fixed asteph date rounding errors. Observatory list now pulls from database. Minor aeshthetic/organizational updates.
November, 29, 2016 Improved Asteph page. Moved to new backend ephemeris tool. Now includes lunar elongation and airmass. Streamlined form fields. Made table generation faster. Removed multiple object option. UpObjects page now has dynamically adjusting table based on changing form fields.
August, 30, 2016 Improved UpObject performance and reliability. Multiple objects are now accepted for asteph (seperate with a ",")
April, 19, 2016 Improved reliability of Astplot and Astfinder. Fixed missing table export icon.
For the full history of updates see the updates page.