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49653 (1999 JO85)
Classification: Main-belt Asteroid          SPK-ID: 2049653
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0840200384637553 4.4011e-08  
a 2.638694076559833 1.4375e-08 au
q 2.416990898753193 1.1741e-07 au
i 15.46662677817621 4.7961e-06 deg
node 109.841380979317 1.6551e-05 deg
peri 186.2667310687641 3.1889e-05 deg
M 187.5023358173382 2.8958e-05 deg
tp 2459350.675208964487
(2021-May-16.17520896)
0.00012702 TDB
period 1565.604244595678
4.29
1.2794e-05
3.503e-08
d
yr
n .2299431681043833 1.879e-09 deg/d
Q 2.860397254366473 1.5583e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1383  
   data-arc span      23611 days (64.64 yr)  
   first obs. used      1955-03-14  
   last obs. used      2019-11-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51688  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 03:45:51  

Additional Information
 Earth MOID = 1.40063 au 
 Jupiter MOID = 2.32686 au 
 T_jup = 3.340 
[ 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 13.8   n/a MPO385134  
diameter diameter 5.536 km 0.221 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 8. h n/a LCDB (Rev. 2019-January); Warner et al., 2009 lower-limit; Incomplete or inconclusive result.
Published Reference List:
[Kim, M.-J.; Choi, Y.-J.; Moon, H.-K.; Byun, Y.-I.; et al. (2014) Astron. J. 147, A56.]
geometric albedo albedo 0.209   0.038 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

49653 (1999 JO85)          Discovered 1999-May-15 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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