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JPL Small-Body Database Browser
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59540 (1999 JC31)
Classification: Main-belt Asteroid          SPK-ID: 2059540
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02359946118081161 3.7824e-08  
a 2.448878206172994 1.1014e-08 au
q 2.391086000009879 8.7858e-08 au
i 1.615049539273379 4.4035e-06 deg
node 8.620793633562799 0.00013178 deg
peri 210.1446586410297 0.00016547 deg
M 81.42155028819057 9.9269e-05 deg
tp 2458283.918106257016
(2018-Jun-14.41810626)
0.0003864 TDB
period 1399.745906876994
3.83
9.4434e-06
2.585e-08
d
yr
n .2571895357802506 1.7351e-09 deg/d
Q 2.506670412336109 1.1274e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1196  
   data-arc span      7479 days (20.48 yr)  
   first obs. used      1999-05-10  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53886  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 07:22:58  

Additional Information
 Earth MOID = 1.38238 au 
 Jupiter MOID = 2.45585 au 
 T_jup = 3.496 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.0   n/a MPO347918  
diameter diameter 2.456 km 0.426 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.352   0.117 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

59540 (1999 JC31)          Discovered 1999-May-10 by LINEAR at Socorro
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 JC31 = 2000 QJ149 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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