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441928 (2010 JT31)
Classification: Main-belt Asteroid          SPK-ID: 2441928
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2167601975725224 5.7423e-08  
a 2.625604960264523 3.3696e-08 au
q 2.05647831033019 1.5087e-07 au
i 13.17492196907372 1.5936e-05 deg
node 139.8079809628361 1.9466e-05 deg
peri 103.4286802852282 4.5326e-05 deg
M 115.059891893636 3.4759e-05 deg
tp 2458503.834533772407
(2019-Jan-20.33453377)
0.00015335 TDB
period 1553.969544897711
4.25
2.9914e-05
8.19e-08
d
yr
n .2316647717981479 4.4596e-09 deg/d
Q 3.194731610198855 4.0999e-08 au
  Orbit Determination Parameters
   # obs. used (total)      137  
   data-arc span      6790 days (18.59 yr)  
   first obs. used      2001-02-21  
   last obs. used      2019-09-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44721  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 10:38:17  

Additional Information
 Earth MOID = 1.09024 au 
 Jupiter MOID = 2.01423 au 
 T_jup = 3.332 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458080.5 (2017-Nov-23.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2167330335651707 5.7467e-08  
q 2.0567388897722 1.5115e-07 au
tp 2458504.391039789277
(2019-Jan-20.89103979)
0.0001532 TDB
node 139.8351686667999 1.9473e-05 deg
peri 103.5697387112427 4.529e-05 deg
i 13.1721601292569 1.5933e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      137  
   data-arc span      6790 days (18.59 yr)  
   first obs. used      2001-02-21  
   last obs. used      2019-09-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44721  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 10:38:17  

Additional Information
 Jupiter MOID = 2.01423 au 
 T_jup = 3.332 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.302505578242672E-15 -8.551049647063534E-15 2.999073463438073E-12 -1.36373467325481E-14 5.456046544102422E-13 -3.017938896953916E-14
q -8.551049647063534E-15 2.284604917820133E-14 -9.45461299943929E-12 3.847911278888391E-14 -1.919447861670442E-12 8.987741318426254E-14
tp 2.999073463438073E-12 -9.45461299943929E-12 2.346944743423138E-8 -4.968621982689298E-11 6.223732826097931E-9 -1.445286808148454E-10
node -1.36373467325481E-14 3.847911278888391E-14 -4.968621982689298E-11 3.792050830347665E-10 -3.807438529670609E-10 1.053477629495774E-11
peri 5.456046544102422E-13 -1.919447861670442E-12 6.223732826097931E-9 -3.807438529670609E-10 2.051190856184191E-9 -4.712413770101197E-11
i -3.017938896953916E-14 8.987741318426254E-14 -1.445286808148454E-10 1.053477629495774E-11 -4.712413770101197E-11 2.538613017398134E-10

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.2   n/a MPO434640  
diameter diameter 2.299 km 0.119 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.030   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

441928 (2010 JT31)          Discovered 2010-May-05 by OAM at La Sagra
Reference: Last Updated: 2015-09-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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