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39591 (1993 LR1)
Classification: Main-belt Asteroid          SPK-ID: 2039591
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 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1621148707136337 4.2307e-08  
a 2.749539768483884 1.1952e-08 au
q 2.303798484394125 1.1547e-07 au
i 12.31939481246207 4.52e-06 deg
node 297.1938546742157 1.9063e-05 deg
peri 237.18460594 2.3433e-05 deg
M 11.31840130101615 1.1999e-05 deg
tp 2458948.143449852109
(2020-Apr-08.64344985)
5.5517e-05 TDB
period 1665.28448249565
4.56
1.0859e-05
2.973e-08
d
yr
n .216179279747141 1.4096e-09 deg/d
Q 3.195281052573644 1.389e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1700  
   data-arc span      9865 days (27.01 yr)  
   first obs. used      1993-06-13  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49672  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 21:02:11  

Additional Information
 Earth MOID = 1.33654 au 
 Jupiter MOID = 1.93073 au 
 T_jup = 3.294 
[ 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 13.8   n/a MPO337579  
diameter diameter 4.590 km 0.162 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.192   0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

39591 (1993 LR1)          Discovered 1993-Jun-15 by McNaught, R. H. at Siding Spring
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

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