From jdg@tycho.jpl.nasa.gov Sun Aug 10 21:10:33 1997 Path: newsfeed.cv.nrao.edu!newsgate.duke.edu!nntprelay.mathworks.com!europa.clark.net!128.158.254.10!news.msfc.nasa.gov!pecos.msfc.nasa.gov!not-for-mail From: jdg@tycho.jpl.nasa.gov (Jon Giorgini) Newsgroups: sci.astro.research Subject: JPL On-Line Solar System Tools Date: 8 Aug 1997 09:33:29 -0500 Organization: Jet Propulsion Laboratory Lines: 88 Sender: astres@pecos.msfc.nasa.gov Approved: astres@pecos.msfc.nasa.gov Distribution: world Message-ID: <5sfanp$2bu@pecos.msfc.nasa.gov> Reply-To: jdg@tycho.jpl.nasa.gov (Jon Giorgini) NNTP-Posting-Host: pecos.msfc.nasa.gov X-Trace: hammer.msfc.nasa.gov 871050810 6299 (None) 128.158.132.24 X-Complaints-To: abuse@news.msfc.nasa.gov Keywords: solar_system X-Posting-Tool: modtool v2.0 Xref: newsfeed.cv.nrao.edu sci.astro.research:113 JPL's Solar System Dynamics Group is making several services available to Internet users. They are intended to be flexible, easy-to-use tools of value to astronomers, researchers and other interested parties. http://ssd.jpl.nasa.gov/ #1) EPHEMERIDES, CONSTANTS & SMALL-BODY PARAMETER MATCHES: Access hard-to-get data on the planets, Sun, all 60 natural satellites and 15000+ asteroids and comets with the "Horizons On-Line Ephemeris System". Generate customized ephemerides, in the form of tables, by selecting from more than 70 possible output quantities output at selectable time steps. Return this table to your system by e-mail, Kermit or FTP. Also search for lists of comets/asteroids meeting certain criteria (all objects with inclination greater than 20 degrees but less than 25, for example). NOTE: The underlying ephemerides are the same ones used at JPL for spacecraft navigation, radar astronomy and mission design, and as the basis for most other ephemeris publications and software (including some that only approximate the JPL models). #2) OBJECT IDENTIFICATION: Given an observation date, location, and region of sky (and, optionally, other constraints), find all asteroids and comets matching the constraints within the region. #3) WHAT'S OBSERVABLE TONIGHT? Given an observation date, location, and constraints (such as maximum magnitude and maximum zenith distance), find all asteroids and comets that are `observable' on that night. To access these tools, see "http://ssd.jpl.nasa.gov/". The Horizons system (ephemerides) can also be accessed by telnet or e-mail. The web-page has complete information explaining the ways of using these tools. The remainder of this message is for indexing purposes, listing major solar system bodies (planets and satellites) available. Comets and asteroids are not listed, but available. 000 Solar System Barycenter 10 Sun 001 Mercury barycenter 199 Mercury 002 Venus barycenter 299 Venus 003 Earth barycenter 399 Earth 301 Moon 004 Mars barycenter 499 Mars 401 Phobos 402 Deimos 005 Jupiter barycenter 599 Jupiter 501 Io 502 Europa 503 Ganymede 504 Callisto 505 Amalthea 506 Himalia 507 Elara 508 Pasiphae 509 Sinope 510 Lysithea 511 Carme 512 Ananke 513 Leda 514 Thebe 515 Adrastea 516 Metis 006 Saturn barycenter 699 Saturn 601 Mimas 602 Enceladus 603 Tethys 604 Dione 605 Rhea 606 Titan 607 Hyperion 608 Iapetus 609 Phoebe 610 Janus 611 Epimetheus 612 Helene 613 Telesto 614 Calypso 615 Atlas 616 Prometheus 617 Pandora 618 Pan 007 Uranus barycenter 799 Uranus 701 Ariel 702 Umbriel 703 Titania 704 Oberon 705 Miranda 706 Cordelia 707 Ophelia 708 Bianca 709 Cressida 710 Desdemona 711 Juliet 712 Portia 713 Rosalind 714 Belinda 715 Puck 008 Neptune barycenter 899 Neptune 801 Triton 802 Nereid 803 Naiad 804 Thalassa 805 Despina 806 Galatea 807 Larissa 808 Proteus 009 Pluto barycenter 999 Pluto 901 Charon