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154251 (2002 LB5)
Classification: Main-belt Asteroid          SPK-ID: 2154251
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1213879960908397 5.4838e-08  
a 3.019098955325899 2.9252e-08 au
q 2.65261658313894 1.6867e-07 au
i 12.17393821025186 5.7415e-06 deg
node 260.5709182339705 3.5835e-05 deg
peri 326.2162198096048 4.7505e-05 deg
M 160.9948650529552 3.4332e-05 deg
tp 2458143.612174861787
(2018-Jan-25.11217486)
0.00017712 TDB
period 1916.083577872437
5.25
2.7848e-05
7.624e-08
d
yr
n .1878832448424475 2.7306e-09 deg/d
Q 3.385581327512857 3.2803e-08 au
  Orbit Determination Parameters
   # obs. used (total)      408  
   data-arc span      6847 days (18.75 yr)  
   first obs. used      2001-01-26  
   last obs. used      2019-10-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57198  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 17:55:15  

Additional Information
 Earth MOID = 1.65104 au 
 Jupiter MOID = 1.69332 au 
 T_jup = 3.202 
[ 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 14.8   n/a MPO376089  
diameter diameter 7.216 km 0.775 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 0.98 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 lower-limit; Incomplete or inconclusive result.
Published Reference List:
[Erasmus, N.; McNeill, A.; Mommert, M.; Trilling, D.E.; et al. (2018) Ap. J. Suppl. Series 237, A19.]
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]
geometric albedo albedo 0.049   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

154251 (2002 LB5)          Discovered 2002-Jun-04 by NEAT at Palomar
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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