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67891 (2000 WR61)
Classification: Main-belt Asteroid          SPK-ID: 2067891
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2201384026048777 3.4999e-08  
a 2.37243546841189 7.3935e-09 au
q 1.850171314112542 8.4096e-08 au
i 4.371358373577675 3.1547e-06 deg
node 270.4215892080415 5.3661e-05 deg
peri 140.8116595222538 5.421e-05 deg
M 205.3529204400564 7.8494e-06 deg
tp 2459773.862468678784
(2022-Jul-13.36246868)
3.0245e-05 TDB
period 1334.719603575536
3.65
6.2393e-06
1.708e-08
d
yr
n .2697195718378663 1.2608e-09 deg/d
Q 2.894699622711238 9.021e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1271  
   data-arc span      8087 days (22.14 yr)  
   first obs. used      1998-04-01  
   last obs. used      2020-05-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48859  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:33:11  

Additional Information
 Earth MOID = .862794 au 
 Jupiter MOID = 2.48633 au 
 T_jup = 3.507 
[ 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 15.25   n/a E2021B10  
diameter diameter 5.101 km 0.181 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.062   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

67891 (2000 WR61)          Discovered 2000-Nov-21 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2000 WR61 = 1998 HU17 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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