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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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2152889088967281 5.6736e-08  
a 2.447833591474114 1.4457e-08 AU
q 1.920842168404892 1.4136e-07 AU
i 3.462871669622686 6.6443e-06 deg
node 268.460940059687 9.9179e-05 deg
peri 53.50455446172757 0.00010054 deg
M 30.80113962245466 1.4059e-05 deg
tp 2456880.816151162261
(2014-Aug-11.31615116)
5.472e-05 JED
period 1398.850370788721
3.83
1.2393e-05
3.393e-08
d
yr
n .2573541870650679 2.2799e-09 deg/d
Q 2.974825014543335 1.757e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      790  
   data-arc span      13880 days (38.00 yr)  
   first obs. used      1976-10-24  
   last obs. used      2014-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57742  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 13:07:52  

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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