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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1875175159676135 3.9673e-08  
a 3.116596646915065 2.1572e-08 au
q 2.532180185412559 1.2755e-07 au
i 16.60150673736483 4.6939e-06 deg
node 246.9279898402979 1.8842e-05 deg
peri 194.3725856919631 2.3723e-05 deg
M 314.2040281964843 1.5117e-05 deg
tp 2458856.149003389478
(2020-Jan-07.64900339)
8.5455e-05 TDB
period 2009.644900976788
5.50
2.0865e-05
5.713e-08
d
yr
n .1791361249069535 1.8599e-09 deg/d
Q 3.701013108417571 2.5617e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1242  
   data-arc span      24047 days (65.84 yr)  
   first obs. used      1953-12-29  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48367  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 04:51:54  

Additional Information
 Earth MOID = 1.55055 au 
 Jupiter MOID = 1.61447 au 
 T_jup = 3.127 
[ 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 13.0   n/a MPO449153  
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 ]
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