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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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06442809959986814 6.5992e-08  
a 2.98495641351017 3.1809e-08 AU
q 2.792641344399272 1.941e-07 AU
i 10.04425410028518 7.9833e-06 deg
node 193.3367534448923 3.6429e-05 deg
peri 67.64258207319088 7.2016e-05 deg
M 217.8385738903914 6.0584e-05 deg
tp 2457744.348837254451
(2016-Dec-21.84883725)
0.00031874 JED
period 1883.67258784486
5.16
3.011e-05
8.244e-08
d
yr
n .1911160157678366 3.055e-09 deg/d
Q 3.177271482621069 3.3859e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      802  
   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      .56203  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 20:57:11  

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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