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160730 (2000 QQ209)
Classification: Main-belt Asteroid          SPK-ID: 2160730
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1773212564287081 5.0616e-08  
a 2.318289900663171 1.24e-08 au
q 1.907207822711592 1.1792e-07 au
i 2.614662758718023 5.806e-06 deg
node 309.5287297958001 7.0591e-05 deg
peri 347.9396821435438 7.1657e-05 deg
M 299.0565712255209 1.2787e-05 deg
tp 2459418.760138111114
(2021-Jul-23.26013811)
4.6835e-05 TDB
period 1289.288300642919
3.53
1.0344e-05
2.832e-08
d
yr
n .2792238165974838 2.2402e-09 deg/d
Q 2.729371978614749 1.4598e-08 au
  Orbit Determination Parameters
   # obs. used (total)      395  
   data-arc span      7144 days (19.56 yr)  
   first obs. used      2000-08-31  
   last obs. used      2020-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52027  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 20:02:34  

Additional Information
 Earth MOID = .889499 au 
 Jupiter MOID = 2.47293 au 
 T_jup = 3.557 
[ 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 16.95   n/a E2021B55  
diameter diameter 2.494 km 0.117 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.054   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

160730 (2000 QQ209)          Discovered 2000-Aug-31 by LINEAR at Socorro
Reference: 20070828/Numbers.arcLast Updated: 2007-08-30

[ show close-approach data ]
Alternate Designations
 2000 QQ209 = 2000 ST371 = 2004 TX321 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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