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JPL Small-Body Database Browser
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80081 (1999 JJ131)
Classification: Main-belt Asteroid          SPK-ID: 2080081
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02654404033184728 6.074e-08  
a 3.187239340296847 2.697e-08 au
q 3.102637130700757 1.9532e-07 au
i 13.08004002968092 6.8453e-06 deg
node 64.06667027385001 2.4367e-05 deg
peri 129.2321899088898 0.00010677 deg
M 294.0125493157711 0.000104 deg
tp 2459381.459924940436
(2021-Jun-15.95992494)
0.0006007 TDB
period 2078.35840840166
5.69
2.638e-05
7.222e-08
d
yr
n .1732136279020587 2.1985e-09 deg/d
Q 3.271841549892937 2.7686e-08 au
  Orbit Determination Parameters
   # obs. used (total)      637  
   data-arc span      7545 days (20.66 yr)  
   first obs. used      1999-05-10  
   last obs. used      2020-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59358  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 12:35:02  

Additional Information
 Earth MOID = 2.10964 au 
 Jupiter MOID = 1.74306 au 
 T_jup = 3.157 
[ 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 14.3   n/a MPO417377  
diameter diameter 6.492 km 0.205 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.063   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

80081 (1999 JJ131)          Discovered 1999-May-13 by LINEAR at Socorro
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

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Alternate Designations
 1999 JJ131 = 2001 UY31 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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