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437938 (2002 QQ81)
Classification: Main-belt Asteroid          SPK-ID: 2437938
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09731469823297693 5.035e-08  
a 2.242422946429825 1.503e-08 au
q 2.024202234087304 1.1359e-07 au
i 7.087301019027193 5.384e-06 deg
node 124.374863660353 6.1694e-05 deg
peri 129.0856840659515 7.4207e-05 deg
M 178.947076823846 4.2559e-05 deg
tp 2458390.827188788150
(2018-Sep-29.32718879)
0.00014408 TDB
period 1226.520242363738
3.36
1.2331e-05
3.376e-08
d
yr
n .2935132968586083 2.951e-09 deg/d
Q 2.460643658772347 1.6493e-08 au
  Orbit Determination Parameters
   # obs. used (total)      148  
   data-arc span      6315 days (17.29 yr)  
   first obs. used      2002-08-14  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50985  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-05 02:04:04  

Additional Information
 Earth MOID = 1.01761 au 
 Jupiter MOID = 2.58467 au 
 T_jup = 3.617 
[ 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 17.4   n/a MPO437699  

437938 (2002 QQ81)          Discovered 2002-Aug-30 by NEAT at Palomar
Reference: Last Updated: 2015-07-06
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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