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JPL Small-Body Database Browser
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52571 (1997 KJ2)
Classification: Main-belt Asteroid          SPK-ID: 2052571
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1676891938590191 4.4716e-08  
a 2.350988313851542 9.1769e-09 au
q 1.956752978729803 1.0584e-07 au
i 5.766017167887626 4.6042e-06 deg
node 90.93230817062236 5.13e-05 deg
peri 264.2451632541179 5.3577e-05 deg
M 39.64403066090702 1.6649e-05 deg
tp 2458855.506198999197
(2020-Jan-07.00619900)
6.0414e-05 TDB
period 1316.661486990553
3.60
7.7092e-06
2.111e-08
d
yr
n .2734187971297311 1.6009e-09 deg/d
Q 2.745223648973282 1.0716e-08 au
  Orbit Determination Parameters
   # obs. used (total)      749  
   data-arc span      9663 days (26.46 yr)  
   first obs. used      1993-04-16  
   last obs. used      2019-09-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60088  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 06:57:42  

Additional Information
 Earth MOID = .962145 au 
 Jupiter MOID = 2.70434 au 
 T_jup = 3.532 
[ 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 15.6   n/a MPO395495  

52571 (1997 KJ2)          Discovered 1997-May-29 by Spacewatch at Kitt Peak
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

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