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3213 Smolensk (1977 NQ)
Classification: Main-belt Asteroid          SPK-ID: 2003213
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 .1603217400607013 4.1944e-08  
a 3.199465403770275 1.3731e-08 au
q 2.68652154297381 1.3328e-07 au
i .9549576829312796 3.9277e-06 deg
node 33.71036269381977 0.00021511 deg
peri 325.9594965176256 0.00021531 deg
M 157.8234558560886 1.0971e-05 deg
tp 2458284.103118403987
(2018-Jun-14.60311840)
6.1484e-05 TDB
period 2090.328561018122
5.72
1.3457e-05
3.684e-08
d
yr
n .172221729499145 1.1087e-09 deg/d
Q 3.712409264566739 1.5933e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2782  
   data-arc span      25609 days (70.11 yr)  
   first obs. used      1950-12-09  
   last obs. used      2021-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46479  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 01:08:48  

Additional Information
 Earth MOID = 1.68159 au 
 Jupiter MOID = 1.73974 au 
 T_jup = 3.174 
[ 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 12.48   n/a E2021B10  
diameter diameter 17.720 km 0.244 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.564 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 0.074   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

3213 Smolensk (1977 NQ)          Discovered 1977-Jul-14 by Chernykh, N. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1977 NQ = 1980 BJ5 = 1983 PL 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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