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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 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1322924448822321 3.6105e-08  
a 3.175293265345534 1.9451e-08 au
q 2.755225956054887 1.1876e-07 au
i 22.77570673829684 4.6279e-06 deg
node 130.5022127215275 9.978e-06 deg
peri 77.52403510848447 2.0916e-05 deg
M 355.2667028801011 1.7053e-05 deg
tp 2459423.672866586537
(2021-Jul-28.17286659)
9.7925e-05 TDB
period 2066.684537936257
5.66
1.899e-05
5.199e-08
d
yr
n .1741920420808333 1.6006e-09 deg/d
Q 3.59536057463618 2.2024e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1765  
   data-arc span      20090 days (55.00 yr)  
   first obs. used      1966-08-08  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45431  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-24 21:47:36  

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 13.45   n/a MPO636317  
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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