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226989 (2004 XU54)
Classification: Main-belt Asteroid          SPK-ID: 2226989
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04937189738162503 6.254e-08  
a 3.081697938067433 3.3076e-08 au
q 2.929548663708002 2.0241e-07 au
i 8.858541865824588 4.7194e-06 deg
node 261.2614495170901 4.6805e-05 deg
peri 53.21517262961058 7.6963e-05 deg
M 69.83987402138818 5.995e-05 deg
tp 2458617.159702918555
(2019-May-13.65970292)
0.00033056 TDB
period 1975.984477106265
5.41
3.1813e-05
8.71e-08
d
yr
n .1821876660322771 2.9332e-09 deg/d
Q 3.233847212426864 3.4709e-08 au
  Orbit Determination Parameters
   # obs. used (total)      357  
   data-arc span      5900 days (16.15 yr)  
   first obs. used      2003-09-20  
   last obs. used      2019-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49947  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 15:37:31  

Additional Information
 Earth MOID = 1.92512 au 
 Jupiter MOID = 1.92694 au 
 T_jup = 3.207 
[ 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 15.1   n/a MPO494246  
diameter diameter 4.212 km 1.342 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.120   0.095 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

226989 (2004 XU54)          Discovered 2004-Dec-10 by LINEAR at Socorro
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

[ show close-approach data ]
Alternate Designations
 2004 XU54 = 2003 UE111 = 2008 PV7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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