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26221 (1997 WG41)
Classification: Main-belt Asteroid          SPK-ID: 2026221
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09415690381207421 3.6418e-08  
a 2.973859947796465 1.8021e-08 au
q 2.693850502741213 1.1272e-07 au
i 9.463350012732459 4.2299e-06 deg
node 254.685865209978 3.0775e-05 deg
peri 47.64177886572509 4.2832e-05 deg
M 257.9545732452299 3.1954e-05 deg
tp 2459531.470313110254
(2021-Nov-12.97031311)		 0.00016808 TDB
period 1873.178630327559
5.13		 1.7027e-05
4.662e-08		 d
yr
n .192186689604209 1.7469e-09 deg/d
Q 3.253869392851717 1.9718e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1454  
   data-arc span      8235 days (22.55 yr)  
   first obs. used      1997-11-29  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53483  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 19:26:22  

Additional Information
 Earth MOID = 1.68891 au 
 Jupiter MOID = 1.92877 au 
 T_jup = 3.234 
[ 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 13.5   n/a MPO337481  
diameter diameter 7.002 km 0.219 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.172   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

26221 (1997 WG41)          Discovered 1997-Nov-29 by LINEAR at Socorro
Reference: 20010705/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 WG41 = 2000 JK26 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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