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JPL Small-Body Database Browser
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34781 (2001 RK63)
Classification: Main-belt Asteroid          SPK-ID: 2034781
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08776582106870044 4.6358e-08  
a 3.173124008633637 2.3566e-08 au
q 2.894632174663099 1.4475e-07 au
i 22.8827639758967 5.0418e-06 deg
node 161.2853420921309 1.0618e-05 deg
peri 193.4063321298467 2.4894e-05 deg
M 132.1173082528351 2.3524e-05 deg
tp 2458242.819324963301
(2018-May-04.31932496)
0.00013301 TDB
period 2064.567062562435
5.65
2.2999e-05
6.297e-08
d
yr
n .1743706981129431 1.9425e-09 deg/d
Q 3.451615842604174 2.5634e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1391  
   data-arc span      8117 days (22.22 yr)  
   first obs. used      1998-01-26  
   last obs. used      2020-04-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51307  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 07:52:18  

Additional Information
 Earth MOID = 1.8912 au 
 Jupiter MOID = 1.9801 au 
 T_jup = 3.073 
[ 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 13.3   n/a MPO452657  
diameter diameter 12.310 km 0.171 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 11.280 h n/a LCDB (Rev. 2019-August); 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 0.074   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

34781 (2001 RK63)          Discovered 2001-Sep-12 by LINEAR at Socorro
Reference: 20020128/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2001 RK63 = 2000 SM5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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