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85428 (1997 AN16)
Classification: Main-belt Asteroid          SPK-ID: 2085428
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1990133299232527 4.2927e-08  
a 3.165236711636225 3.0287e-08 au
q 2.535312413658173 1.4107e-07 au
i 11.05774440990678 7.1775e-06 deg
node 1.961819758760004 2.5488e-05 deg
peri 271.1602032655661 3.0901e-05 deg
M 266.8174245023092 1.8569e-05 deg
tp 2459532.902305249990
(2021-Nov-14.40230525)
0.00010813 TDB
period 2056.874140538709
5.63
2.9522e-05
8.083e-08
d
yr
n .1750228625586754 2.5121e-09 deg/d
Q 3.795161009614277 3.6314e-08 au
  Orbit Determination Parameters
   # obs. used (total)      576  
   data-arc span      8505 days (23.29 yr)  
   first obs. used      1997-01-14  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60882  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 15:36:58  

Additional Information
 Earth MOID = 1.55017 au 
 Jupiter MOID = 1.57298 au 
 T_jup = 3.144 
[ 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 14.5   n/a MPO337902  
diameter diameter 6.266 km 0.165 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.094   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85428 (1997 AN16)          Discovered 1997-Jan-14 by Klet at Klet
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1997 AN16 = 1998 FT46 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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