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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2200960646994201 3.4331e-08  
a 2.377554146486571 6.8425e-09 au
q 1.854263835235088 8.2785e-08 au
i 1.84424313242539 3.5075e-06 deg
node 67.02002328542225 0.0001039 deg
peri 297.7898285254412 0.00010413 deg
M 1.117245998238695 8.8313e-06 deg
tp 2458996.344336647421
(2020-May-26.84433665)
3.2837e-05 TDB
period 1339.041544375111
3.67
5.7806e-06
1.583e-08
d
yr
n .2688490148138015 1.1606e-09 deg/d
Q 2.900844457738054 8.3485e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1584  
   data-arc span      25582 days (70.04 yr)  
   first obs. used      1950-10-15  
   last obs. used      2020-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51508  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 01:25:01  

Additional Information
 Earth MOID = .853276 au 
 Jupiter MOID = 2.55796 au 
 T_jup = 3.507 
[ show covariance matrix ]

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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