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 ]  
48258 (2001 WA31)
Classification: Main-belt Asteroid          SPK-ID: 2048258
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05396010885601522 7.4595e-08  
a 2.534971914053552 1.2718e-08 au
q 2.398184553624282 1.923e-07 au
i 4.590836522504611 4.2174e-06 deg
node 125.61609494312 6.5899e-05 deg
peri 49.00680333540353 7.6993e-05 deg
M .4584395341950281 3.8743e-05 deg
tp 2458598.622682551556
(2019-Apr-25.12268255)
0.00015865 TDB
period 1474.205933452992
4.04
1.1094e-05
3.037e-08
d
yr
n .2441992613316797 1.8377e-09 deg/d
Q 2.671759274482824 1.3404e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1033  
   data-arc span      9253 days (25.33 yr)  
   first obs. used      1994-01-08  
   last obs. used      2019-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54153  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:37:24  

Additional Information
 Earth MOID = 1.40651 au 
 Jupiter MOID = 2.29502 au 
 T_jup = 3.442 
[ 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 14.9   n/a MPO337643  
diameter diameter 2.772 km 0.872 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.230   0.142 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

48258 (2001 WA31)          Discovered 2001-Nov-17 by LINEAR at Socorro
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2001 WA31 = 2000 QH10 
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