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JPL Small-Body Database Browser
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146441 (2001 QQ291)
Classification: Main-belt Asteroid          SPK-ID: 2146441
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08897871698399511 4.9556e-08  
a 2.319089877532706 1.2838e-08 au
q 2.112740235659275 1.1342e-07 au
i 24.08377756075845 7.1727e-06 deg
node 1.097965816995725 1.045e-05 deg
peri 291.3342717229844 4.3381e-05 deg
M 64.25541102449604 4.5081e-05 deg
tp 2458370.259350083052
(2018-Sep-08.75935008)
0.00016112 TDB
period 1289.955704096307
3.53
1.0712e-05
2.933e-08
d
yr
n .279079350443434 2.3174e-09 deg/d
Q 2.525439519406136 1.3981e-08 au
  Orbit Determination Parameters
   # obs. used (total)      851  
   data-arc span      7655 days (20.96 yr)  
   first obs. used      1998-12-12  
   last obs. used      2019-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51267  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 12:59:05  

Additional Information
 Earth MOID = 1.17955 au 
 Jupiter MOID = 2.71188 au 
 T_jup = 3.458 
[ 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 15.0   n/a MPO351878  
diameter diameter 5.579 km 0.131 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.070   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

146441 (2001 QQ291)          Discovered 2001-Aug-16 by LINEAR at Socorro
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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