Lowell Observatory offers these tools to assist with asteroid observation planning. The orbital solutions used within these tools are independently calculated from Minor Planet Center observations. Asteroid.lowell.edu is in the process of upgrading and in a Beta status. Functionality should generally be available. However, some tools may experience bugs. If a bug is particularly important, please direct concerns to email@example.com.
|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.|
|April, 6, 2016||Major UI updates. Fixed slow UpObjects load time. Fixed UpObjects plots being in wrong date order. HOP backend calculates daily.|
|February, 1, 2016||Airmass added to Ephemeris output on Asteph. Many popup plots for UpObjects parameters (click on a parameter).|
|December, 23, 2015||Ephemeris and Designation table now reference a JSON object which can be called directly. Minor UI and consistency updates.|
|December, 7, 2015||Added phase column option to UpObjects. Fixes sort by asteroid number on UpObjects. Optimized some code.|
|December, 1, 2015||New tool: NEO observing calendar. A publicly available summation of NEO observations.|
|November, 27, 2015||Fixed issue with negative phase angle object being improperly filtered on UpObjecs page|
|November, 18, 2015||Asteph object identifier links bring to prepopulated ephemeris page|
|November, 03, 2015||Fixed Asteph ephemerides. They used to be wrong. Now they are correct.|
The research and computing needed to generate astorb.dat were funded principally by NASA grant NAG5-4741, and in part by the Lowell Observatory endowment. astorb.dat may be freely used, copied, and transmitted provided attribution to Dr. Edward Bowell and the aforementioned funding sources is made. Hypertext links to this WWW site are welcome.
This research has made use of data and/or services provided by the International Astronomical Union's Minor Planet Center.