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JPL Small-Body Database Browser
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27131 (1998 XU3)
Classification: Main-belt Asteroid          SPK-ID: 2027131
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2207395585379907 4.1406e-08  
a 2.378497461195035 7.5839e-09 au
q 1.853468981627111 9.9309e-08 au
i 1.845103945834278 3.5903e-06 deg
node 67.03095927950879 0.000133 deg
peri 297.7370757834995 0.00013315 deg
M 253.7106688343999 8.8539e-06 deg
tp 2458996.084838945350
(2020-May-26.58483895)
3.4197e-05 TDB
period 1339.838537495814
3.67
6.4081e-06
1.754e-08
d
yr
n .2686890919504729 1.2851e-09 deg/d
Q 2.903525940762959 9.2579e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1378  
   data-arc span      25042 days (68.56 yr)  
   first obs. used      1950-10-15  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53279  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 03:26:56  

Additional Information
 Earth MOID = .851614 au 
 Jupiter MOID = 2.55172 au 
 T_jup = 3.506 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456128.5 (2012-Jul-20.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2202557883422918 4.1434e-08  
q 1.854174415833573 9.9199e-08 au
tp 2456318.939312874330
(2013-Jan-26.43931287)
2.7563e-05 TDB
node 67.0652456341671 0.00013282 deg
peri 297.9825035772241 0.00013297 deg
i 1.846648516051936 3.593e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1378  
   data-arc span      25042 days (68.56 yr)  
   first obs. used      1950-10-15  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53279  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 03:26:56  

Additional Information
 Jupiter MOID = 2.55172 au 
 T_jup = 3.506 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.71677832377148E-15 -4.102906225172235E-15 -2.730635326717109E-14 -7.907090474224331E-15 -1.750821163932737E-15 -6.566388779520005E-16
q -4.102906225172235E-15 9.840511182775902E-15 1.207962621446768E-13 1.906931863938182E-14 1.501521669809412E-14 1.569482925065747E-15
tp -2.730635326717109E-14 1.207962621446768E-13 7.597355152297518E-10 4.190654165547386E-12 2.006547685560854E-10 -1.406743858797605E-13
node -7.907090474224331E-15 1.906931863938182E-14 4.190654165547386E-12 1.764016702728866E-8 -1.762949908092491E-8 -1.363768778289335E-10
peri -1.750821163932737E-15 1.501521669809412E-14 2.006547685560854E-10 -1.762949908092491E-8 1.768194675665508E-8 1.362724728169576E-10
i -6.566388779520005E-16 1.569482925065747E-15 -1.406743858797605E-13 -1.363768778289335E-10 1.362724728169576E-10 1.290984196172811E-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 14.9   n/a MPO435952  
diameter diameter 2.724 km 0.447 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.286   0.148 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

27131 (1998 XU3)          Discovered 1998-Dec-09 by Kobayashi, T. at Oizumi
Reference: 20010804/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 XU3 = 1950 TV1 = 2000 EW39 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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