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JPL Small-Body Database Browser
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215367 (2001 XM256)
Classification: Main-belt Asteroid          SPK-ID: 2215367
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2055669939428476 4.8089e-08  
a 2.79563710648698 1.5456e-08 au
q 2.220946390351371 1.3556e-07 au
i 15.13493838435146 5.9351e-06 deg
node 126.4642447030791 1.6868e-05 deg
peri 220.3385426425579 2.3262e-05 deg
M 317.1580486820588 1.3063e-05 deg
tp 2458803.682530013499
(2019-Nov-16.18253001)
6.2119e-05 TDB
period 1707.338451090301
4.67
1.4159e-05
3.877e-08
d
yr
n .2108545026735064 1.7486e-09 deg/d
Q 3.370327822622589 1.8633e-08 au
  Orbit Determination Parameters
   # obs. used (total)      401  
   data-arc span      8863 days (24.27 yr)  
   first obs. used      1995-07-28  
   last obs. used      2019-11-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60372  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 17:00:17  

Additional Information
 Earth MOID = 1.2325 au 
 Jupiter MOID = 2.07496 au 
 T_jup = 3.246 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457316.5 (2015-Oct-21.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2080858586587074 4.7964e-08  
q 2.212025726645785 1.3557e-07 au
tp 2457097.423524259527
(2015-Mar-15.92352426)
6.0278e-05 TDB
node 126.6332839674025 1.6875e-05 deg
peri 220.2448426587677 2.3031e-05 deg
i 15.13868929553866 5.9369e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      401  
   data-arc span      8863 days (24.27 yr)  
   first obs. used      1995-07-28  
   last obs. used      2019-11-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60372  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 17:00:17  

Additional Information
 Jupiter MOID = 2.07496 au 
 T_jup = 3.246 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.300504433345301E-15 -6.476217237843462E-15 -1.179141594058553E-12 7.32404595454321E-15 -3.430215827827131E-13 -3.439872769187246E-15
q -6.476217237843462E-15 1.837795045934557E-14 3.208962290404161E-12 -2.206335047544799E-14 9.448670145865797E-13 1.127840304665127E-14
tp -1.179141594058553E-12 3.208962290404161E-12 3.633477956787015E-9 -1.929192521304027E-11 9.583092075419922E-10 -6.085447175342009E-12
node 7.32404595454321E-15 -2.206335047544799E-14 -1.929192521304027E-11 2.847697700431615E-10 -2.791057837964093E-10 3.50637114278521E-12
peri -3.430215827827131E-13 9.448670145865797E-13 9.583092075419922E-10 -2.791057837964093E-10 5.304366547426392E-10 -4.978087559046845E-12
i -3.439872769187246E-15 1.127840304665127E-14 -6.085447175342009E-12 3.50637114278521E-12 -4.978087559046845E-12 3.524633893000527E-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 15.9   n/a MPO446199  
diameter diameter 1.869 km 0.571 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.242   0.149 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

215367 (2001 XM256)          Discovered 2001-Dec-07 by LINEAR at Socorro
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

Alternate Designations
 2001 XM256 = 2005 MW2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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