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2781 Kleczek (1982 QH)
Classification: Main-belt Asteroid          SPK-ID: 2002781
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .180620389301901 3.4092e-08  
a 3.158678229784826 1.4229e-08 au
q 2.588156538241652 1.0914e-07 au
i 2.313029015540489 3.4125e-06 deg
node 146.6599814651246 9.2929e-05 deg
peri 256.2053618011096 9.3344e-05 deg
M 267.484608529516 1.0251e-05 deg
tp 2459727.448287801987
(2022-May-27.94828780)
6.0358e-05 TDB
period 2050.484579846776
5.61
1.3855e-05
3.793e-08
d
yr
n .1755682552008761 1.1863e-09 deg/d
Q 3.729199921328001 1.6799e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2589  
   data-arc span      25418 days (69.59 yr)  
   first obs. used      1951-02-04  
   last obs. used      2020-09-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45588  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:06:09  

Additional Information
 Earth MOID = 1.59718 au 
 Jupiter MOID = 1.68348 au 
 T_jup = 3.179 
[ 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 12.00   n/a E2021B10  
diameter diameter 20.727 km 0.204 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 7.306 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Buchheim, R.K. (2006) Minor Planet Bull. 33, 63.]
[Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.]
geometric albedo albedo 0.091   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

2781 Kleczek (1982 QH)          Discovered 1982-Aug-19 by Vavrova, Z. at Klet
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1982 QH = 1962 AE = 1971 UX1 = 1976 PA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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