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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1876709575481847 3.9624e-08  
a 3.117328508834677 1.8146e-08 au
q 2.532296482589418 1.2739e-07 au
i 16.60006316484112 4.636e-06 deg
node 246.927422263144 1.5134e-05 deg
peri 194.2922690479672 1.9824e-05 deg
M 25.90433837921805 1.1368e-05 deg
tp 2458855.842056235777
(2020-Jan-07.34205624)
6.3374e-05 TDB
period 2010.352821707248
5.50
1.7554e-05
4.806e-08
d
yr
n .1790730443496371 1.5636e-09 deg/d
Q 3.702360535079936 2.1552e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1412  
   data-arc span      24141 days (66.09 yr)  
   first obs. used      1953-12-29  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46676  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 00:40:59  

Additional Information
 Earth MOID = 1.55076 au 
 Jupiter MOID = 1.61357 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 13.0   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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