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43321 (2000 JR52)
Classification: Main-belt Asteroid          SPK-ID: 2043321
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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3118493401235674 3.056e-08  
a 2.556078036861981 1.371e-08 au
q 1.758966787762229 7.7058e-08 au
i 5.466183104997667 3.6267e-06 deg
node 320.5883524115143 4.0565e-05 deg
peri 354.0789660939454 4.1861e-05 deg
M 330.2050823443977 1.3361e-05 deg
tp 2459324.037633758956
(2021-Apr-19.53763376)
5.5774e-05 TDB
period 1492.655514852942
4.09
1.2009e-05
3.288e-08
d
yr
n .2411808996903532 1.9404e-09 deg/d
Q 3.353189285961734 1.7985e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1344  
   data-arc span      11643 days (31.88 yr)  
   first obs. used      1988-08-08  
   last obs. used      2020-06-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47399  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:18:40  

Additional Information
 Earth MOID = .743366 au 
 Jupiter MOID = 1.96036 au 
 T_jup = 3.361 
[ 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 14.54   n/a E2021B10  
diameter diameter 3.668 km 0.761 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.75 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:
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]
geometric albedo albedo 0.173   0.123 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

43321 (2000 JR52)          Discovered 2000-May-09 by LINEAR at Socorro
Reference: 20020624/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2000 JR52 = 1988 PL4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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