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85463 (1997 JR1)
Classification: Main-belt Asteroid          SPK-ID: 2085463
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1191533346889658 3.2891e-08  
a 3.171674133484456 2.1399e-08 au
q 2.793758583933048 1.1085e-07 au
i 2.043481326066122 3.8721e-06 deg
node 160.9806316443782 0.00011969 deg
peri 127.4306282616104 0.0001215 deg
M 325.3848800329159 1.9198e-05 deg
tp 2459198.878502554976
(2020-Dec-15.37850256)
0.00011004 TDB
period 2063.152200185983
5.65
2.088e-05
5.717e-08
d
yr
n .1744902775314142 1.7659e-09 deg/d
Q 3.549589683035865 2.3949e-08 au
  Orbit Determination Parameters
   # obs. used (total)      847  
   data-arc span      9769 days (26.75 yr)  
   first obs. used      1993-09-18  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52752  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 00:16:38  

Additional Information
 Earth MOID = 1.77805 au 
 Jupiter MOID = 1.60903 au 
 T_jup = 3.190 
[ 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 14.7   n/a MPO432398  
rotation period rot_per 2.84 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.-H.; Lin, H.-W.; Ip, W.-H.; Chen, W.-P.; et al. (2019) ArXiv:1901.08719.]

85463 (1997 JR1)          Discovered 1997-May-01 by ODAS at Caussols
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

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