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20829 (2000 UR27)
Classification: Main-belt Asteroid          SPK-ID: 2020829
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1572396803982795 3.4416e-08  
a 2.756993290731344 1.4133e-08 au
q 2.323484546836547 9.4868e-08 au
i 8.972010329729862 4.8489e-06 deg
node 187.0388306858963 2.6137e-05 deg
peri 122.9525052419799 3.0689e-05 deg
M 235.6556701212805 1.7062e-05 deg
tp 2459778.031233241562
(2022-Jul-17.53123324)
8.061e-05 TDB
period 1672.060512688842
4.58
1.2857e-05
3.52e-08
d
yr
n .2153032125739777 1.6555e-09 deg/d
Q 3.190502034626141 1.6355e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1224  
   data-arc span      9776 days (26.77 yr)  
   first obs. used      1994-06-09  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58429  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:32:28  

Additional Information
 Earth MOID = 1.32236 au 
 Jupiter MOID = 2.15876 au 
 T_jup = 3.307 
[ 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 14.41   n/a E2021B10  
diameter diameter 4.288 km 0.546 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 16.0669 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.201   0.087 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20829 (2000 UR27)          Discovered 2000-Oct-24 by LINEAR at Socorro
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2000 UR27 = 1998 FO43 = 1999 NJ61 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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