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JPL Small-Body Database Browser
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146438 (2001 QQ283)
Classification: Main-belt Asteroid          SPK-ID: 2146438
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1653002404942314 4.3751e-08  
a 2.650097021897542 2.0225e-08 au
q 2.212035346844832 1.1859e-07 au
i 11.42729931519636 5.4283e-06 deg
node 265.7002420239015 2.991e-05 deg
peri 122.2151606651325 3.7552e-05 deg
M 348.662922198027 2.3549e-05 deg
tp 2458650.123765310713
(2019-Jun-15.62376531)
0.00010335 TDB
period 1575.763686542562
4.31
1.8039e-05
4.939e-08
d
yr
n .2284606524915475 2.6153e-09 deg/d
Q 3.088158696950252 2.3568e-08 au
  Orbit Determination Parameters
   # obs. used (total)      498  
   data-arc span      7562 days (20.70 yr)  
   first obs. used      1999-03-22  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58872  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 11:36:26  

Additional Information
 Earth MOID = 1.24152 au 
 Jupiter MOID = 2.40393 au 
 T_jup = 3.343 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.2   n/a MPO449800  
diameter diameter 2.395 km 0.424 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.281   0.096 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

146438 (2001 QQ283)          Discovered 2001-Aug-18 by NEAT at Palomar
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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