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28008 (1997 XR11)
Classification: Main-belt Asteroid          SPK-ID: 2028008
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1808169529936831 8.4738e-08  
a 2.691890150410803 2.1634e-08 au
q 2.205150775619814 2.2445e-07 au
i 13.58363257658763 8.1401e-06 deg
node 305.0206967319228 2.8501e-05 deg
peri 6.976941500780343 3.332e-05 deg
M 181.5308961791207 1.9843e-05 deg
tp 2458400.232911665563
(2018-Oct-08.73291167)
9.3401e-05 JED
period 1613.18593546902
4.42
1.9447e-05
5.324e-08
d
yr
n .2231608843622438 2.6902e-09 deg/d
Q 3.178629525201792 2.5546e-08 au
  Orbit Determination Parameters
   # obs. used (total)      897  
   data-arc span      11905 days (32.59 yr)  
   first obs. used      1983-09-01  
   last obs. used      2016-04-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49486  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:50:38  

Additional Information
 Earth MOID = 1.19083 au 
 Jupiter MOID = 2.09387 au 
 T_jup = 3.308 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.8 mag n/a PDS3 (MPO 15227)  

28008 (1997 XR11)          Discovered 1997-Dec-05 by Shimizu, Y., Urata, T. at Nachi-Katsuura
Reference: 20010902/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 XR11 = 1983 RM5 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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