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JPL Small-Body Database Browser
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56570 (2000 JA21)
Classification: Main-belt Asteroid          SPK-ID: 2056570
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1309258520672362 4.6363e-08  
a 2.379367228756881 9.7282e-09 au
q 2.067846546951028 1.0906e-07 au
i 3.222192045557621 4.2874e-06 deg
node 279.9486221438627 8.8229e-05 deg
peri 86.63324256622157 8.9772e-05 deg
M 276.7408655140243 1.7783e-05 deg
tp 2458910.541644353862
(2020-Mar-02.04164435)
6.7105e-05 TDB
period 1340.573531738923
3.67
8.2216e-06
2.251e-08
d
yr
n .2685417781843167 1.6469e-09 deg/d
Q 2.690887910562734 1.1002e-08 au
  Orbit Determination Parameters
   # obs. used (total)      946  
   data-arc span      7588 days (20.77 yr)  
   first obs. used      1997-07-06  
   last obs. used      2018-04-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58792  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 01:20:58  

Additional Information
 Earth MOID = 1.06843 au 
 Jupiter MOID = 2.77593 au 
 T_jup = 3.526 
[ 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 15.0   n/a MPO436178  
diameter diameter 2.356 km 0.507 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.220 h n/a LCDB (Rev. 2019-January); 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.318   0.148 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

56570 (2000 JA21)          Discovered 2000-May-06 by LINEAR at Socorro
Reference: 20030318/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2000 JA21 = 1998 YX32 = 2001 QM66 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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