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JPL Small-Body Database Browser
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65840 (1997 AA4)
Classification: Main-belt Asteroid          SPK-ID: 2065840
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1885762498056352 7.502e-08  
a 2.47394009357904 1.2425e-08 au
q 2.007413748488103 1.7951e-07 au
i 2.218287772397096 3.8881e-06 deg
node 283.1064106168722 0.00014472 deg
peri 122.5506938387991 0.00014571 deg
M 320.3575641130723 1.223e-05 deg
tp 2458757.009256048007
(2019-Sep-30.50925605)
4.7801e-05 TDB
period 1421.288347113453
3.89
1.0707e-05
2.931e-08
d
yr
n .2532913189157831 1.9081e-09 deg/d
Q 2.940466438669978 1.4768e-08 au
  Orbit Determination Parameters
   # obs. used (total)      894  
   data-arc span      9813 days (26.87 yr)  
   first obs. used      1993-01-21  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56922  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 06:57:29  

Additional Information
 Earth MOID = 1.01742 au 
 Jupiter MOID = 2.45361 au 
 T_jup = 3.457 
[ 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 15.7   n/a MPO412594  

65840 (1997 AA4)          Discovered 1997-Jan-06 by Kobayashi, T. at Oizumi
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 AA4 = 1999 RM60 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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