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109489 (2001 QW225)
Classification: Outer Main-belt Asteroid          SPK-ID: 2109489
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06401954893446522 6.0056e-08  
a 3.20547467468315 3.1881e-08 au
q 3.000261631889083 1.818e-07 au
i 9.936862724344165 5.2203e-06 deg
node 285.0901371468555 3.2003e-05 deg
peri 18.77676302653191 5.5442e-05 deg
M 140.1912481291572 4.6623e-05 deg
tp 2458184.189555091593
(2018-Mar-06.68955509)
0.00027051 TDB
period 2096.220442350898
5.74
3.1273e-05
8.562e-08
d
yr
n .17173766304667 2.5621e-09 deg/d
Q 3.410687717477217 3.3922e-08 au
  Orbit Determination Parameters
   # obs. used (total)      619  
   data-arc span      6739 days (18.45 yr)  
   first obs. used      2001-08-12  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51705  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 03:26:38  

Additional Information
 Earth MOID = 1.98654 au 
 Jupiter MOID = 1.77891 au 
 T_jup = 3.166 
[ 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 14.6   n/a MPO366463  
diameter diameter 7.680 km 0.359 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.063   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

109489 (2001 QW225)          Discovered 2001-Aug-24 by LONEOS at Anderson Mesa
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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