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JPL Small-Body Database Browser
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54401 (2000 LM)
Classification: Amor [NEO]          SPK-ID: 2054401
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 142 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2622604488831159 1.016e-07  
a 1.710747422330665 4.8006e-09 au
q 1.262086035424592 1.7112e-07 au
i 18.95253713919674 7.2319e-06 deg
node 240.8681533391524 1.3756e-05 deg
peri 67.06471040179453 2.2007e-05 deg
M 136.0200161463894 1.782e-05 deg
tp 2458291.699788149181
(2018-Jun-22.19978815)
3.9405e-05 TDB
period 817.2920384500759
2.24
3.4401e-06
9.418e-09
d
yr
n .4404790247103215 1.8541e-09 deg/d
Q 2.159408809236739 6.0596e-09 au
  Orbit Determination Parameters
   # obs. used (total)      783  
   data-arc span      10663 days (29.19 yr)  
   first obs. used      1989-10-28  
   last obs. used      2019-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47726  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jan-26 10:08:01  

Additional Information
 Earth MOID = .354667 au 
 Jupiter MOID = 3.15461 au 
 T_jup = 4.088 
[ 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 17.1   n/a MPO449353  
diameter diameter 1.189 km 0.191 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2011ApJ...743..156M)  
rotation period rot_per 19.03 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:
[Warner, B.D.; Stephens, R.D. (2019) Minor Planet Bull. 46-2, submitted. (NEA Gaggle) http://www.planetarysciences.org/PHP/CS3_Lightcurves.php]
geometric albedo albedo 0.181   0.072 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2011ApJ...743..156M)  

54401 (2000 LM)          Discovered 2000-Jun-01 by LINEAR at Socorro
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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