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376897 (2001 XJ155)
Classification: Main-belt Asteroid          SPK-ID: 2376897
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1731234589486083 2.3068e-07  
a 2.557874463506988 5.6942e-08 au
q 2.115046388828343 6.3249e-07 au
i 10.46225349823643 1.3345e-05 deg
node 255.0003886827954 5.923e-05 deg
peri 193.261659943283 0.00017883 deg
M 184.9685031428896 0.00016565 deg
tp 2459726.992227383850
(2022-May-27.49222738)
0.00071094 TDB
period 1494.22936188277
4.09
4.9896e-05
1.366e-07
d
yr
n .2409268678446996 8.0451e-09 deg/d
Q 3.000702538185634 6.6801e-08 au
  Orbit Determination Parameters
   # obs. used (total)      197  
   data-arc span      6347 days (17.38 yr)  
   first obs. used      2001-12-14  
   last obs. used      2019-05-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50771  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 15:59:06  

Additional Information
 Earth MOID = 1.13266 au 
 Jupiter MOID = 2.23868 au 
 T_jup = 3.392 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456637.5 (2013-Dec-11.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1746871974023462 2.3021e-07  
q 2.108791113913833 6.2785e-07 au
tp 2456742.187697263148
(2014-Mar-25.68769726)
0.00060794 TDB
node 255.0470446675427 5.9174e-05 deg
peri 193.3457411205539 0.0001771 deg
i 10.47236493064046 1.3366e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      197  
   data-arc span      6347 days (17.38 yr)  
   first obs. used      2001-12-14  
   last obs. used      2019-05-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50771  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 15:59:06  

Additional Information
 Jupiter MOID = 2.23868 au 
 T_jup = 3.392 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.299796098340061E-14 -1.444646432970517E-13 -1.330184176439048E-10 -3.604170481855929E-13 -3.648728401422013E-11 -2.760759281689688E-13
q -1.444646432970517E-13 3.941975198759476E-13 3.652436682393338E-10 9.81663941113095E-13 1.001869314131548E-10 7.576881475633357E-13
tp -1.330184176439048E-10 3.652436682393338E-10 3.695895824602285E-7 1.006596306232782E-9 1.016121975508851E-7 7.247330258295667E-10
node -3.604170481855929E-13 9.81663941113095E-13 1.006596306232782E-9 3.501571755755501E-9 -3.165173020986003E-9 -5.315732034150245E-10
peri -3.648728401422013E-11 1.001869314131548E-10 1.016121975508851E-7 -3.165173020986003E-9 3.136609875517101E-8 7.24145449030035E-10
i -2.760759281689688E-13 7.576881475633357E-13 7.247330258295667E-10 -5.315732034150245E-10 7.24145449030035E-10 1.786376756852195E-10

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 17.3   n/a MPO427872  
diameter diameter 1.867 km 0.693 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.073   0.083 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

376897 (2001 XJ155)          Discovered 2001-Dec-14 by LINEAR at Socorro
Reference: Last Updated: 2013-11-20

[ show close-approach data ]
Alternate Designations
 2001 XJ155 = 2005 WA55 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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