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JPL Small-Body Database Browser
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56842 (2000 QJ44)
Classification: Main-belt Asteroid          SPK-ID: 2056842
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1621458505407088 4.555e-08  
a 2.364145119062297 1.1634e-08 au
q 1.980808797930275 1.067e-07 au
i 8.415422599117653 5.2436e-06 deg
node 332.3642499033299 3.506e-05 deg
peri 271.2105584006635 3.8557e-05 deg
M 117.9063099677273 1.7348e-05 deg
tp 2458165.645297316551
(2018-Feb-16.14529732)
6.3047e-05 TDB
period 1327.729559248281
3.64
9.8007e-06
2.683e-08
d
yr
n .2711395536029346 2.0014e-09 deg/d
Q 2.747481440194318 1.352e-08 au
  Orbit Determination Parameters
   # obs. used (total)      801  
   data-arc span      7600 days (20.81 yr)  
   first obs. used      1999-02-10  
   last obs. used      2019-12-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55175  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 05:47:25  

Additional Information
 Earth MOID = .989604 au 
 Jupiter MOID = 2.34334 au 
 T_jup = 3.517 
[ 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 15.4   n/a MPO502533  
diameter diameter 2.152 km 0.652 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.200   0.130 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

56842 (2000 QJ44)          Discovered 2000-Aug-24 by LINEAR at Socorro
Reference: 20030318/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2000 QJ44 = 1999 CF29 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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