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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1306969449261312 3.9255e-08  
a 2.378319751743352 8.2345e-09 au
q 2.067480626133021 9.3227e-08 au
i 3.222789427023149 4.233e-06 deg
node 279.9489667640342 7.76e-05 deg
peri 86.82004084038658 7.9388e-05 deg
M 24.02320207504251 1.7372e-05 deg
tp 2458911.101098055608
(2020-Mar-02.60109806)
6.4463e-05 TDB
period 1339.68838123442
3.67
6.9576e-06
1.905e-08
d
yr
n .2687192074236604 1.3956e-09 deg/d
Q 2.689158877353683 9.3107e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1087  
   data-arc span      8530 days (23.35 yr)  
   first obs. used      1997-07-06  
   last obs. used      2020-11-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57883  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 03:56:03  

Additional Information
 Earth MOID = 1.06898 au 
 Jupiter MOID = 2.78167 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. 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:
[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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