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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07853426852341092 7.8358e-08  
a 3.045244398843677 3.5918e-08 au
q 2.806088357505474 2.4951e-07 au
i 10.58375868065549 8.7142e-06 deg
node 156.3956971882526 3.1495e-05 deg
peri 234.3672422464111 4.863e-05 deg
M 296.966797328818 3.726e-05 deg
tp 2458940.358807774437
(2020-Mar-31.85880777)
0.00020229 TDB
period 1941.027357233331
5.31
3.4341e-05
9.402e-08
d
yr
n .1854687924198712 3.2814e-09 deg/d
Q 3.28440044018188 3.8739e-08 au
  Orbit Determination Parameters
   # obs. used (total)      312  
   data-arc span      5885 days (16.11 yr)  
   first obs. used      2003-08-23  
   last obs. used      2019-10-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62398  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 00:52:00  

Additional Information
 Earth MOID = 1.82404 au 
 Jupiter MOID = 2.10657 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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