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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06529709202948278 7.1328e-08  
a 2.982562741785039 3.5126e-08 AU
q 2.787810067950995 2.1109e-07 AU
i 10.04490731271251 8.5599e-06 deg
node 193.3950762614132 3.9051e-05 deg
peri 67.68420664662669 7.5823e-05 deg
M 179.5121225592857 6.3721e-05 deg
tp 2455862.346094876463
(2011-Oct-27.84609488)
0.00033105 JED
period 1881.40723327993
5.15
3.3237e-05
9.1e-08
d
yr
n .1913461336982308 3.3803e-09 deg/d
Q 3.177315415619083 3.742e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      803  
   data-arc span      7761 days (21.25 yr)  
   first obs. used      1992-10-03  
   last obs. used      2014-01-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57521  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jan-22 03:48:50  

Additional Information
 Earth MOID = 1.7927 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 (327)
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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