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3439 Lebofsky (1983 RL2)
Classification: Main-belt Asteroid          SPK-ID: 2003439
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.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1392399858976992 3.2519e-08  
a 2.743555158948052 1.1398e-08 au
q 2.361542577306566 9.0539e-08 au
i 4.731659944101122 4.755e-06 deg
node 7.812836229841354 4.2732e-05 deg
peri 283.4194275765452 4.5857e-05 deg
M 337.6264626644154 1.6871e-05 deg
tp 2458703.657574745002
(2019-Aug-08.15757474)
7.7919e-05 TDB
period 1659.850489941777
4.54
1.0344e-05
2.832e-08
d
yr
n .2168870040895237 1.3516e-09 deg/d
Q 3.125567740589539 1.2985e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2225  
   data-arc span      16504 days (45.19 yr)  
   first obs. used      1974-08-24  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45691  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:26:12  

Additional Information
 Earth MOID = 1.3504 au 
 Jupiter MOID = 2.06964 au 
 T_jup = 3.330 
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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 12.3   n/a MPO452211  
diameter diameter 8.762 km 0.253 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 5.969 h n/a LCDB (Rev. 2019-January); 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 0.303   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

3439 Lebofsky (1983 RL2)          Discovered 1983-Sep-04 by Bowell, E. at Flagstaff (AM)
Discovered at the Anderson Mesa station, which is operated by the Lowell Observatory.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1983 RL2 = 1974 QR1 = 1979 UN4 = 1981 AB3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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