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227009 (2004 XF121)
Classification: Main-belt Asteroid          SPK-ID: 2227009
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07592345493945021 8.8019e-08  
a 3.13966252917933 3.3759e-08 au
q 2.901288502620103 2.9865e-07 au
i 15.09210827581021 4.1418e-06 deg
node 283.0414109497808 1.9807e-05 deg
peri 197.0258232755571 4.2555e-05 deg
M 297.7955843989629 4.1246e-05 deg
tp 2459551.608703544354
(2021-Dec-03.10870354)
0.00023458 TDB
period 2031.996154206455
5.56
3.2774e-05
8.973e-08
d
yr
n .1771656896371386 2.8575e-09 deg/d
Q 3.378036555738558 3.6322e-08 au
  Orbit Determination Parameters
   # obs. used (total)      456  
   data-arc span      9893 days (27.09 yr)  
   first obs. used      1993-12-16  
   last obs. used      2021-01-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52662  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:38:05  

Additional Information
 Earth MOID = 1.9206 au 
 Jupiter MOID = 1.77842 au 
 T_jup = 3.153 
[ 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 14.8   n/a MPO494246  
diameter diameter 6.087 km 0.207 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.069   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

227009 (2004 XF121)          Discovered 2004-Dec-14 by LINEAR at Socorro
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

[ show close-approach data ]
Alternate Designations
 2004 XF121 = 2002 PW8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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