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3921 Klement'ev (1971 OH)
Classification: Main-belt Asteroid          SPK-ID: 2003921
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2846806178014324 9.7079e-09  
a 2.649133108602016 1.0031e-08 au
q 1.894976258606965 2.3829e-08 au
i 12.02866459640616 1.2334e-06 deg
node 155.2754385053261 4.6072e-06 deg
peri 216.4751480253938 6.2696e-06 deg
M 126.3474842874183 5.1718e-06 deg
tp 2458647.763434260205
(2019-Jun-13.26343426)
2.1427e-05 TDB
period 1574.904041727257
4.31
8.9452e-06
2.449e-08
d
yr
n .228585355337062 1.2983e-09 deg/d
Q 3.403289958597067 1.2887e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2547  
   data-arc span      24306 days (66.55 yr)  
   first obs. used      1954-09-06  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44915  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 21:18:30  

Additional Information
 Earth MOID = .905998 au 
 Jupiter MOID = 2.09613 au 
 T_jup = 3.302 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.70   n/a MPCxxxxx  
diameter diameter 16.513 km 0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 6.754 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2019) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.038   0.002 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

3921 Klement'ev (1971 OH)          Discovered 1971-Jul-19 by Burnasheva, B. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1971 OH = 1928 QO = 1954 RM = 1980 WT = 1982 DW4 = 1984 QK1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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