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JPL Small-Body Database Browser
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160721 (2000 QB159)
Classification: Main-belt Asteroid          SPK-ID: 2160721
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2864114973296206 3.9116e-08  
a 3.150713756596714 2.2088e-08 au
q 2.248313111912815 1.2524e-07 au
i 16.72976120993138 5.802e-06 deg
node 184.5485657880192 1.5424e-05 deg
peri 79.35664435374312 1.9244e-05 deg
M 170.3155852967596 9.9727e-06 deg
tp 2457634.084824060920
(2016-Sep-02.58482406)		 5.3183e-05 TDB
period 2042.734155725488
5.59		 2.148e-05
5.881e-08		 d
yr
n .1762343861490601 1.8532e-09 deg/d
Q 4.053114401280612 2.8414e-08 au
   Orbit Determination Parameters
   # obs. used (total)      437  
   data-arc span      7185 days (19.67 yr)  
   first obs. used      1999-04-12  
   last obs. used      2018-12-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57466  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 13:47:41  

Additional Information
 Earth MOID = 1.30515 au 
 Jupiter MOID = 1.45646 au 
 T_jup = 3.079 
[ 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 15.3   n/a MPO426994  
diameter diameter 2.502 km 0.461 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.214   0.159 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

160721 (2000 QB159)          Discovered 2000-Aug-31 by LINEAR at Socorro
Reference: 20070828/Numbers.arcLast Updated: 2007-08-30

[ show close-approach data ]
Alternate Designations
 2000 QB159 = 2005 JC21 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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