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109216 (2001 QU85)
Classification: Main-belt Asteroid          SPK-ID: 2109216
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1542142675452056 4.4603e-08  
a 2.751063740408848 1.5991e-08 au
q 2.326810460711524 1.2365e-07 au
i 12.20577554023592 6.3823e-06 deg
node 4.951899535404097 2.0304e-05 deg
peri 275.7673374465001 2.9106e-05 deg
M 103.3168537726873 2.1208e-05 deg
tp 2458522.180509477418
(2019-Feb-07.68050948)
9.8121e-05 TDB
period 1666.669186103794
4.56
1.4532e-05
3.979e-08
d
yr
n .2159996734814419 1.8833e-09 deg/d
Q 3.175317020106172 1.8457e-08 au
  Orbit Determination Parameters
   # obs. used (total)      704  
   data-arc span      7210 days (19.74 yr)  
   first obs. used      2000-04-28  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55226  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 03:21:28  

Additional Information
 Earth MOID = 1.35 au 
 Jupiter MOID = 2.11815 au 
 T_jup = 3.296 
[ 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 15.1   n/a MPO502754  
diameter diameter 2.623 km 0.397 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.281   0.085 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

109216 (2001 QU85)          Discovered 2001-Aug-22 by Yeung, W. K. Y. at Desert Eagle
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2001 QU85 = 2000 JU47 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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