Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
31931 Sipiera (2000 GW82)
Classification: Main-belt Asteroid          SPK-ID: 2031931
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2509946005966668 6.9184e-08  
a 2.554696687029676 1.7866e-08 AU
q 1.913481612423035 1.791e-07 AU
i 1.151512334436647 5.4553e-06 deg
node 88.1502110791595 0.00035913 deg
peri 239.2365528940433 0.0003598 deg
M 133.0725843054065 1.6605e-05 deg
tp 2456449.192964989890
(2013-Jun-05.69296499)
6.9078e-05 JED
period 1491.445692135523
4.08
1.5645e-05
4.283e-08
d
yr
n .2413765394866874 2.5321e-09 deg/d
Q 3.195911761636318 2.235e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      640  
   data-arc span      8325 days (22.79 yr)  
   first obs. used      1992-05-03  
   last obs. used      2015-02-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53622  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 15:40:12  

Additional Information
 Earth MOID = .903009 AU 
 T_jup = 3.393 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.5 mag n/a MPO263614  

31931 Sipiera           Discovered 2000 Apr. 10 by P. G. Comba at Prescott.
Paul P. Sipiera (b. 1948) is a professor of geology and astronomy at Harper College and president of the Planetary Studies Foundation. He has led three expeditions to Antarctica in search of meteorites and has classified more than 200 such objects.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040504/MPCPages.arcLast Updated: 2004-05-11

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2015-Mar-29 22:22 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin