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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 ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1203977033139671 2.9443e-08  
a 3.175405389203827 1.9587e-08 au
q 2.793093873252892 9.8004e-08 au
i 2.04670403075487 3.6282e-06 deg
node 160.9013767889435 0.00010834 deg
peri 126.9495957453448 0.00011029 deg
M 34.85663159965307 1.849e-05 deg
tp 2459196.384785486927
(2020-Dec-12.88478549)
0.00010628 TDB
period 2066.794005001431
5.66
1.9123e-05
5.236e-08
d
yr
n .1741828160565768 1.6116e-09 deg/d
Q 3.557716905154762 2.1945e-08 au
  Orbit Determination Parameters
   # obs. used (total)      928  
   data-arc span      10186 days (27.89 yr)  
   first obs. used      1993-09-18  
   last obs. used      2021-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52395  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 01:54:01  

Additional Information
 Earth MOID = 1.77705 au 
 Jupiter MOID = 1.59762 au 
 T_jup = 3.189 
[ 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 14.82   n/a E2021B10  
rotation period rot_per 2.84 h n/a LCDB (Rev. 2020-October); 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) Ap. J. Supp. Ser. 241, A6.]

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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