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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2153689040370552 6.2144e-08  
a 2.448104034374781 1.8826e-08 AU
q 1.920858551522791 1.5805e-07 AU
i 3.462940494038616 8.0026e-06 deg
node 268.464519255251 0.00011245 deg
peri 53.51633972782366 0.00011417 deg
M 339.3239223751332 2.4297e-05 deg
tp 2456880.854256031566
(2014-Aug-11.35425603)
9.4956e-05 JED
period 1399.082200028752
3.83
1.6139e-05
4.419e-08
d
yr
n .2573115432335583 2.9681e-09 deg/d
Q 2.97534951722677 2.2881e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      708  
   data-arc span      13325 days (36.48 yr)  
   first obs. used      1976-10-24  
   last obs. used      2013-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .6014  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-05 16:01:06  

Additional Information
 Earth MOID = .909598 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 14.5 mag n/a PDS3 (MPC 31680)  

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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