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160887 (2001 QD223)
Classification: Outer Main-belt Asteroid          SPK-ID: 2160887
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1442822360078905 6.7094e-08  
a 3.242800552240723 2.4182e-08 au
q 2.77492203763581 2.1316e-07 au
i 1.018505805529009 6.4223e-06 deg
node 352.4757779199211 0.00025001 deg
peri 359.2826203402909 0.00025051 deg
M 90.71238399555442 1.543e-05 deg
tp 2458663.044063507427
(2019-Jun-28.54406351)
9.1016e-05 TDB
period 2132.940714542441
5.84
2.3858e-05
6.532e-08
d
yr
n .1687810624765664 1.8879e-09 deg/d
Q 3.710679066845637 2.7671e-08 au
  Orbit Determination Parameters
   # obs. used (total)      495  
   data-arc span      8836 days (24.19 yr)  
   first obs. used      1996-11-08  
   last obs. used      2021-01-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58111  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 20:03:13  

Additional Information
 Earth MOID = 1.76759 au 
 Jupiter MOID = 1.72091 au 
 T_jup = 3.167 
[ 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 15.2   n/a MPO502933  

160887 (2001 QD223)          Discovered 2001-Aug-24 by LONEOS at Anderson Mesa
Reference: 20070828/Numbers.arcLast Updated: 2007-08-30

[ show close-approach data ]
Alternate Designations
 2001 QD223 = 1996 VH20 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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