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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 ]

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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 49 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1385048589596093 1.1728e-08  
a 2.742068381451296 9.1223e-09 au
q 2.36227858702078 3.076e-08 au
i 4.731914795786277 5.2939e-07 deg
node 7.778551855699008 2.6794e-06 deg
peri 283.432510610351 8.6789e-06 deg
M 107.8786109136702 7.3943e-06 deg
tp 2458703.508806511011
(2019-Aug-08.00880651)
3.3215e-05 TDB
period 1658.501422485077
4.54
8.2763e-06
2.266e-08
d
yr
n .2170634255233744 1.0832e-09 deg/d
Q 3.121858175881812 1.0386e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3337  
   data-arc span      17012 days (46.58 yr)  
   first obs. used      1974-08-24  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .39383  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 20:58:41  

Additional Information
 Earth MOID = 1.34986 au 
 Jupiter MOID = 2.07311 au 
 T_jup = 3.331 
[ 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 12.37   n/a E2021B10  
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. 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.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
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

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