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JPL Small-Body Database Browser
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59754 (1999 LR31)
Classification: Main-belt Asteroid          SPK-ID: 2059754
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2224874298668366 4.6894e-08  
a 2.328620448346119 8.617e-09 au
q 1.81053166965823 1.0861e-07 au
i 6.293162017838247 3.9828e-06 deg
node 108.1730981119359 4.9535e-05 deg
peri 218.0915728966824 5.0367e-05 deg
M 295.0218313831437 1.0189e-05 deg
tp 2459234.767181808250
(2021-Jan-20.26718181)
3.7018e-05 TDB
period 1297.915703784424
3.55
7.2043e-06
1.972e-08
d
yr
n .2773677820141345 1.5396e-09 deg/d
Q 2.846709227034008 1.0534e-08 au
  Orbit Determination Parameters
   # obs. used (total)      892  
   data-arc span      10551 days (28.89 yr)  
   first obs. used      1991-03-08  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56958  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 12:53:34  

Additional Information
 Earth MOID = .803309 au 
 Jupiter MOID = 2.49737 au 
 T_jup = 3.531 
[ 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 15.8   n/a MPO263809  
diameter diameter 1.789 km 0.080 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.167   0.055 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

59754 (1999 LR31)          Discovered 1999-Jun-11 by Spacewatch at Kitt Peak
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 LR31 = 2001 BS45 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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