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85424 (1997 AA3)
Classification: Main-belt Asteroid          SPK-ID: 2085424
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2532845330488578 3.585e-08  
a 3.126402406597347 1.925e-08 au
q 2.334533032919512 1.1384e-07 au
i 15.37269717069836 6.6531e-06 deg
node 321.4847792803915 1.4673e-05 deg
peri 68.19759568809957 2.0259e-05 deg
M 69.52331808800052 1.2326e-05 deg
tp 2458210.563641335769
(2018-Apr-02.06364134)
6.7938e-05 TDB
period 2019.13678719186
5.53
1.8649e-05
5.106e-08
d
yr
n .1782940127105873 1.6467e-09 deg/d
Q 3.918271780275181 2.4126e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1031  
   data-arc span      8173 days (22.38 yr)  
   first obs. used      1997-01-04  
   last obs. used      2019-05-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47666  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 10:58:59  

Additional Information
 Earth MOID = 1.38736 au 
 Jupiter MOID = 1.9002 au 
 T_jup = 3.110 
[ 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 13.6   n/a MPO432398  
rotation period rot_per 7.16 h n/a LCDB (Rev. 2019-January); 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.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]

85424 (1997 AA3)          Discovered 1997-Jan-04 by Kobayashi, T. at Oizumi
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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