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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .181233550601376 8.8808e-08  
a 2.691813439057539 2.3304e-08 AU
q 2.20396653194064 2.3726e-07 AU
i 13.58570218623226 8.9868e-06 deg
node 305.0217119131415 3.1509e-05 deg
peri 7.04912849593001 3.6848e-05 deg
M 47.50079742306574 2.0787e-05 deg
tp 2456787.654603222131
(2014-May-10.15460322)
9.2322e-05 JED
period 1613.116979017812
4.42
2.0948e-05
5.735e-08
d
yr
n .2231704238952313 2.898e-09 deg/d
Q 3.179660346174437 2.7527e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      834  
   data-arc span      11427 days (31.29 yr)  
   first obs. used      1983-09-01  
   last obs. used      2014-12-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .46882  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 14:17:01  

Additional Information
 Earth MOID = 1.19111 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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