Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
85829 (1998 XW56)
Classification: Main-belt Asteroid          SPK-ID: 2085829
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2034335369035573 6.3199e-08  
a 2.428538300414166 1.4124e-08 au
q 1.934492164455158 1.4998e-07 au
i .7561372250015636 6.436e-06 deg
node 189.7300657228856 0.00034833 deg
peri 188.353032129769 0.00034851 deg
M 179.9907643372548 1.4065e-05 deg
tp 2457909.363892065664
(2017-Jun-04.86389207)
5.0412e-05 TDB
period 1382.343142841257
3.78
1.206e-05
3.302e-08
d
yr
n .2604273778651363 2.272e-09 deg/d
Q 2.922584436373173 1.6998e-08 au
  Orbit Determination Parameters
   # obs. used (total)      575  
   data-arc span      10491 days (28.72 yr)  
   first obs. used      1990-08-20  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55816  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:56:05  

Additional Information
 Earth MOID = .935636 au 
 Jupiter MOID = 2.53659 au 
 T_jup = 3.480 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.8   n/a MPO267963  

85829 (1998 XW56)          Discovered 1998-Dec-15 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1998 XW56 = 1990 QG6 = 2002 YR28 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin