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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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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .177256378688971 5.0676e-08  
a 2.318629546713245 1.2548e-08 au
q 1.907637669741605 1.1799e-07 au
i 2.614667498957884 5.82e-06 deg
node 309.5288686552004 7.1395e-05 deg
peri 347.89100471139 7.2496e-05 deg
M 243.2629324724759 1.2589e-05 deg
tp 2459418.668923098483
(2021-Jul-23.16892310)
4.7004e-05 TDB
period 1289.571645955213
3.53
1.0469e-05
2.866e-08
d
yr
n .2791624654040377 2.2662e-09 deg/d
Q 2.729621423684885 1.4773e-08 au
  Orbit Determination Parameters
   # obs. used (total)      384  
   data-arc span      7088 days (19.41 yr)  
   first obs. used      2000-08-31  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51322  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 13:24:13  

Additional Information
 Earth MOID = .891905 au 
 Jupiter MOID = 2.47313 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 16.8   n/a MPO454064  
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

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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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