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JPL Small-Body Database Browser
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215547 (2002 XE56)
Classification: Main-belt Asteroid          SPK-ID: 2215547
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2332901687353489 4.6226e-08  
a 2.584433424594561 1.5771e-08 au
q 1.981510514885621 1.2445e-07 au
i 14.72063337655474 5.392e-06 deg
node 110.4808667562448 1.6756e-05 deg
peri 256.5891564032397 2.0615e-05 deg
M 121.5777389536058 1.3357e-05 deg
tp 2458487.995111607424
(2019-Jan-04.49511161)
5.3217e-05 TDB
period 1517.562025822287
4.15
1.3891e-05
3.803e-08
d
yr
n .2372225937881748 2.1713e-09 deg/d
Q 3.187356334303502 1.945e-08 au
  Orbit Determination Parameters
   # obs. used (total)      442  
   data-arc span      6267 days (17.16 yr)  
   first obs. used      2002-12-08  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57801  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 03:24:35  

Additional Information
 Earth MOID = 1.0377 au 
 Jupiter MOID = 2.43567 au 
 T_jup = 3.339 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457406.5 (2016-Jan-19.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2330144496809907 4.6829e-08  
q 1.98247114891508 1.2624e-07 au
tp 2456966.713788462818
(2014-Nov-05.21378846)
4.542e-05 TDB
node 110.7226891707561 1.673e-05 deg
peri 255.8034024609792 2.0567e-05 deg
i 14.72785149347482 5.3987e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      442  
   data-arc span      6267 days (17.16 yr)  
   first obs. used      2002-12-08  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57801  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 03:24:35  

Additional Information
 Jupiter MOID = 2.43567 au 
 T_jup = 3.339 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.19297387823118E-15 -5.887685812561696E-15 -1.182684756662653E-12 -1.016969075223591E-14 -3.383222004339521E-13 -1.517737904384469E-14
q -5.887685812561696E-15 1.593545395058747E-14 3.315188484124183E-12 2.789992099196816E-14 9.505475864507418E-13 4.204727930085539E-14
tp -1.182684756662653E-12 3.315188484124183E-12 2.062958186546753E-9 7.608497812105314E-12 5.584736821669312E-10 1.117871824131606E-11
node -1.016969075223591E-14 2.789992099196816E-14 7.608497812105314E-12 2.798781268956951E-10 -2.68328436742561E-10 3.237886160152586E-11
peri -3.383222004339521E-13 9.505475864507418E-13 5.584736821669312E-10 -2.68328436742561E-10 4.229904756281054E-10 -2.823191351170516E-11
i -1.517737904384469E-14 4.204727930085539E-14 1.117871824131606E-11 3.237886160152586E-11 -2.823191351170516E-11 2.91455213361321E-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 16.0   n/a MPO367419  
diameter diameter 1.749 km 0.393 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.332   0.115 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

215547 (2002 XE56)          Discovered 2002-Dec-08 by NEAT at Haleakala
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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