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14538 (1997 RR8)
Classification: Main-belt Asteroid          SPK-ID: 2014538
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06305004388350037 5.7733e-08  
a 2.984497326892962 3.0743e-08 au
q 2.796324639462171 1.7367e-07 au
i 10.06189646005673 6.9019e-06 deg
node 193.2241905803801 3.5606e-05 deg
peri 68.25946671325318 6.6808e-05 deg
M 293.6185266615387 5.7631e-05 deg
tp 2457747.755877243317
(2016-Dec-25.25587724)
0.00030316 JED
period 1883.23804098458
5.16
2.9099e-05
7.967e-08
d
yr
n .1911601147414097 2.9537e-09 deg/d
Q 3.172670014323753 3.2681e-08 au
  Orbit Determination Parameters
   # obs. used (total)      899  
   data-arc span      8237 days (22.55 yr)  
   first obs. used      1992-10-03  
   last obs. used      2015-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54393  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 16:20:58  

Additional Information
 Earth MOID = 1.80032 au 
 Jupiter MOID = 1.8698 au 
 T_jup = 3.232 
[ 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 13.6 mag n/a MPO267764  

14538 (1997 RR8)          Discovered 1997-Sep-12 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20000418/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 RR8 = 1998 XQ84 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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