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226408 (2003 QM81)
Classification: Main-belt Asteroid          SPK-ID: 2226408
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07880151908861406 7.7874e-08  
a 3.045790031386268 3.4638e-08 au
q 2.805777150088073 2.4859e-07 au
i 10.58334014949913 8.6705e-06 deg
node 156.3922960708739 3.1051e-05 deg
peri 234.4496634579425 4.8204e-05 deg
M 11.08919557326457 3.7031e-05 deg
tp 2458940.693841094465
(2020-Apr-01.19384109)
0.00019949 TDB
period 1941.549056804508
5.32
3.312e-05
9.068e-08
d
yr
n .1854189564452751 3.163e-09 deg/d
Q 3.285802912684464 3.7368e-08 au
  Orbit Determination Parameters
   # obs. used (total)      323  
   data-arc span      5997 days (16.42 yr)  
   first obs. used      2003-08-23  
   last obs. used      2020-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6062  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 05:53:30  

Additional Information
 Earth MOID = 1.82455 au 
 Jupiter MOID = 2.10476 au 
 T_jup = 3.208 
[ 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 15.4   n/a MPO454625  
diameter diameter 3.025 km 0.345 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.134   0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

226408 (2003 QM81)          Discovered 2003-Aug-23 by Buie, M. W. at Cerro Tololo
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

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