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
JPL Small-Body Database Browser
Search: [ help ]  
26219 (1997 WO21)
Classification: Main-belt Asteroid          SPK-ID: 2026219
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1877028719975197 3.8108e-08  
a 3.117048044562403 1.7512e-08 au
q 2.531969174443787 1.218e-07 au
i 16.59952429465364 4.4421e-06 deg
node 246.9206545114754 1.4757e-05 deg
peri 194.2527831564798 1.9417e-05 deg
M 61.75511364971909 1.1115e-05 deg
tp 2458855.686630948437
(2020-Jan-07.18663095)
6.1826e-05 TDB
period 2010.08152236033
5.50
1.694e-05
4.638e-08
d
yr
n .1790972137176165 1.5093e-09 deg/d
Q 3.702126914681019 2.08e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1605  
   data-arc span      24495 days (67.06 yr)  
   first obs. used      1953-12-29  
   last obs. used      2021-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4624  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 03:18:16  

Additional Information
 Earth MOID = 1.54999 au 
 Jupiter MOID = 1.61447 au 
 T_jup = 3.126 
[ 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 13.11   n/a E2021B10  
diameter diameter 7.650 km 0.200 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.229   0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

26219 (1997 WO21)          Discovered 1997-Nov-30 by Kobayashi, T. at Oizumi
Reference: 20010705/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 WO21 = 1991 RG29 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Feb-27 20:28 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin