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JPL Small-Body Database Browser
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56258 (1999 JH83)
Classification: Main-belt Asteroid          SPK-ID: 2056258
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1403332193066492 3.6832e-08  
a 2.58746883014924 1.5525e-08 au
q 2.224360999358788 9.6763e-08 au
i 12.24387420896878 5.0779e-06 deg
node 159.5490707088353 1.9244e-05 deg
peri 88.71350181493229 3.01e-05 deg
M 7.652223753035284 2.8128e-05 deg
tp 2458968.185586594528
(2020-Apr-28.68558659)
0.00011859 TDB
period 1520.236365455931
4.16
1.3682e-05
3.746e-08
d
yr
n .236805281191937 2.1312e-09 deg/d
Q 2.950576660939693 1.7703e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1293  
   data-arc span      7566 days (20.71 yr)  
   first obs. used      1999-05-12  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52553  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 11:45:33  

Additional Information
 Earth MOID = 1.25216 au 
 Jupiter MOID = 2.17604 au 
 T_jup = 3.376 
[ 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 14.4   n/a MPO337704  
diameter diameter 3.919 km 0.698 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.263   0.221 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

56258 (1999 JH83)          Discovered 1999-May-12 by LINEAR at Socorro
Reference: 20030318/Numbers.arcLast Updated: 2004-04-19

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1933-Aug-09 07:49 < 00:01 Eunom 0.0113600682959872 0.011359370290933 0.0113607665156831 9.48157806881052 9.48157793848415 2427293.825796030 0.834593961761521 751.310225099701 34.6179314634756 -89.7243545953045 49078.1475759539 T 24 CATAB v2.0f-lin.ifort 2020-Feb-23 11:45:51 2020-Feb-23 11:45

Alternate Designations
 1999 JH83 = 2000 QG93 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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