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85429 (1997 AJ18)
Classification: Main-belt Asteroid          SPK-ID: 2085429
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05678568424551979 7.6293e-08  
a 2.965195026454427 2.8754e-08 au
q 2.7968143979558 2.2651e-07 au
i 9.815629588203521 4.931e-06 deg
node 271.6294688259658 6.6833e-05 deg
peri 13.73751147539714 0.00014643 deg
M 119.7081411324865 0.00012819 deg
tp 2458776.346059477696
(2019-Oct-19.84605948)
0.00066808 TDB
period 1864.997789423047
5.11
2.7127e-05
7.427e-08
d
yr
n .1930297194139672 2.8077e-09 deg/d
Q 3.133575654953054 3.0386e-08 au
  Orbit Determination Parameters
   # obs. used (total)      572  
   data-arc span      8726 days (23.89 yr)  
   first obs. used      1997-01-15  
   last obs. used      2020-12-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50023  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 14:12:59  

Additional Information
 Earth MOID = 1.7811 au 
 Jupiter MOID = 1.98191 au 
 T_jup = 3.240 
[ 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 14.96   n/a E2021B10  
diameter diameter 3.467 km 0.564 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.212   0.042 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85429 (1997 AJ18)          Discovered 1997-Jan-15 by Klet at Klet
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1997 AJ18 = 2002 AU54 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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