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227004 (2004 XA97)
Classification: Main-belt Asteroid          SPK-ID: 2227004
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1021224295534099 7.8893e-08  
a 2.91298326413231 3.2427e-08 au
q 2.615502335950696 2.3985e-07 au
i 8.985404492316622 5.3264e-06 deg
node 78.97407610801311 4.5523e-05 deg
peri 297.6405228752633 5.4374e-05 deg
M 153.0753426108758 3.3477e-05 deg
tp 2458428.338488267852
(2018-Nov-05.83848827)
0.0001627 TDB
period 1815.956374699783
4.97
3.0323e-05
8.302e-08
d
yr
n .1982426477946178 3.3103e-09 deg/d
Q 3.210464192313923 3.5739e-08 au
  Orbit Determination Parameters
   # obs. used (total)      458  
   data-arc span      7776 days (21.29 yr)  
   first obs. used      2000-01-04  
   last obs. used      2021-04-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51604  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:50:24  

Additional Information
 Earth MOID = 1.6316 au 
 Jupiter MOID = 2.26336 au 
 T_jup = 3.257 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457728.5 (2016-Dec-06.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1009875204305047 7.8793e-08  
q 2.61897850220293 2.388e-07 au
tp 2458428.535416501954
(2018-Nov-06.03541650)
0.00016455 TDB
node 78.98784580684195 4.5523e-05 deg
peri 297.6896625621654 5.4586e-05 deg
i 8.984835567952388 5.3259e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      458  
   data-arc span      7776 days (21.29 yr)  
   first obs. used      2000-01-04  
   last obs. used      2021-04-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51604  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:50:24  

Additional Information
 Jupiter MOID = 2.26336 au 
 T_jup = 3.257 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.208367429881624E-15 -1.868848937156912E-14 -1.977117256118902E-12 1.305306083690124E-14 -6.308072785493891E-13 2.80951231487629E-16
q -1.868848937156912E-14 5.702721456504605E-14 7.863045415218486E-12 -3.267417300920162E-14 2.188122453863843E-12 3.009848510722625E-16
tp -1.977117256118902E-12 7.863045415218486E-12 2.707545422100888E-8 8.145832674358951E-11 5.002204836281357E-9 -6.083840070810447E-12
node 1.305306083690124E-14 -3.267417300920162E-14 8.145832674358951E-11 2.072386049150413E-9 -2.031643245682853E-9 -7.400449892511244E-12
peri -6.308072785493891E-13 2.188122453863843E-12 5.002204836281357E-9 -2.031643245682853E-9 2.979611128656693E-9 6.126462702717275E-12
i 2.80951231487629E-16 3.009848510722625E-16 -6.083840070810447E-12 -7.400449892511244E-12 6.126462702717275E-12 2.836498090473102E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.46   n/a E2021B55  
diameter diameter 3.932 km 0.362 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.095   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

227004 (2004 XA97)          Discovered 2004-Dec-11 by Spacewatch at Kitt Peak
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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