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16865 (1998 AQ)
Classification: Main-belt Asteroid          SPK-ID: 2016865
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 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1322924440548166 3.6111e-08  
a 3.175293266922551 1.9507e-08 au
q 2.755225960050563 1.1881e-07 au
i 22.77570687997735 4.6475e-06 deg
node 130.5022127231053 9.9784e-06 deg
peri 77.52403622254866 2.0943e-05 deg
M 355.2667014279719 1.7108e-05 deg
tp 2459423.672874943149
(2021-Jul-28.17287494)
9.8245e-05 TDB
period 2066.684539475893
5.66
1.9044e-05
5.214e-08
d
yr
n .1741920419510639 1.6052e-09 deg/d
Q 3.595360573794538 2.2087e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1735  
   data-arc span      20048 days (54.89 yr)  
   first obs. used      1966-08-08  
   last obs. used      2021-06-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45416  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 04:14:39  

Additional Information
 Earth MOID = 1.86017 au 
 Jupiter MOID = 1.72003 au 
 T_jup = 3.067 
[ 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 13.44   n/a MPO614063  
diameter diameter 9.855 km 0.160 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.109   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

16865 (1998 AQ)          Discovered 1998-Jan-05 by Kobayashi, T. at Oizumi
Reference: 20000913/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 AQ = 1966 PW 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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