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8671 (1991 PW)
Classification: Main-belt Asteroid          SPK-ID: 2008671
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2152889101325759 5.5793e-08  
a 2.447833590705542 1.4103e-08 AU
q 1.920842164776636 1.3862e-07 AU
i 3.462873778267209 6.2905e-06 deg
node 268.4609476789334 9.9088e-05 deg
peri 53.50454600175667 0.00010043 deg
M 30.80114087376371 1.3642e-05 deg
tp 2456880.816146356423
(2014-Aug-11.31614636)
5.3159e-05 JED
period 1398.850370129903
3.83
1.2089e-05
3.31e-08
d
yr
n .2573541871862742 2.2241e-09 deg/d
Q 2.974825016634447 1.7139e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      843  
   data-arc span      13947 days (38.18 yr)  
   first obs. used      1976-10-24  
   last obs. used      2014-12-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5722  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 13:23:59  

Additional Information
 Earth MOID = .911454 AU 
 T_jup = 3.463 
[ 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 14.6 mag n/a MPO313490  

8671 (1991 PW)          Discovered 1991-Aug-05 by Holt, H. E. at Palomar (675)
Reference: 19980511/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 PW = 1976 UE19 = 1996 XC27 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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