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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06442811682907523 6.4209e-08  
a 2.984956420075675 3.1285e-08 AU
q 2.792641299113341 1.8991e-07 AU
i 10.04425407498588 7.7851e-06 deg
node 193.3367534933467 3.639e-05 deg
peri 67.64256582147817 7.0535e-05 deg
M 217.8385872299535 5.9423e-05 deg
tp 2457744.348769910386
(2016-Dec-21.84876991)
0.00031312 JED
period 1883.672594059655
5.16
2.9613e-05
8.108e-08
d
yr
n .1911160151372882 3.0046e-09 deg/d
Q 3.177271541038009 3.33e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      806  
   data-arc span      8086 days (22.14 yr)  
   first obs. used      1992-10-03  
   last obs. used      2014-11-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56135  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 02:24:08  

Additional Information
 Earth MOID = 1.79915 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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