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268487 (2005 XJ84)
Classification: Main-belt Asteroid          SPK-ID: 2268487
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 .2133682921780068 5.4426e-08  
a 2.544536068846629 1.8796e-08 au
q 2.001612753451484 1.4499e-07 au
i 6.074126376492876 4.0543e-06 deg
node 166.6053146112176 5.3105e-05 deg
peri 200.1509432008743 5.4421e-05 deg
M 254.4285192021112 1.2827e-05 deg
tp 2459435.265882664271
(2021-Aug-08.76588266)
5.3503e-05 TDB
period 1482.556809625309
4.06
1.6427e-05
4.497e-08
d
yr
n .2428237472336617 2.6905e-09 deg/d
Q 3.087459384241773 2.2807e-08 au
  Orbit Determination Parameters
   # obs. used (total)      441  
   data-arc span      7780 days (21.30 yr)  
   first obs. used      1999-03-21  
   last obs. used      2020-07-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54245  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 22:12:38  

Additional Information
 Earth MOID = 1.0012 au 
 Jupiter MOID = 2.37325 au 
 T_jup = 3.404 
[ 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 16.1   n/a MPO433743  

268487 (2005 XJ84)          Discovered 2005-Dec-08 by LINEAR at Socorro
Reference: 20110319/Numbers.arcLast Updated: 2011-03-23

Alternate Designations
 2005 XJ84 = 1999 FU89 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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