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JPL Small-Body Database Browser
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65861 (1997 JK4)
Classification: Main-belt Asteroid          SPK-ID: 2065861
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1143155592967783 4.699e-08  
a 2.529549406166779 1.0853e-08 au
q 2.240382551031991 1.1791e-07 au
i 3.354178148956102 3.973e-06 deg
node 25.65126203407382 8.4597e-05 deg
peri 336.3149412971088 8.6682e-05 deg
M 134.4552460375269 1.9657e-05 deg
tp 2458451.669261149454
(2018-Nov-29.16926115)
7.9504e-05 TDB
period 1469.478297120898
4.02
9.4568e-06
2.589e-08
d
yr
n .2449849043060633 1.5766e-09 deg/d
Q 2.818716261301568 1.2093e-08 au
  Orbit Determination Parameters
   # obs. used (total)      988  
   data-arc span      8839 days (24.20 yr)  
   first obs. used      1995-11-22  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5857  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 14:46:58  

Additional Information
 Earth MOID = 1.23813 au 
 Jupiter MOID = 2.62467 au 
 T_jup = 3.440 
[ 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 15.5   n/a MPO309648  

65861 (1997 JK4)          Discovered 1997-May-01 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 JK4 = 2002 RA45 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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