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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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2152889103668512 5.5757e-08  
a 2.447833590604323 1.4096e-08 AU
q 1.920842164123741 1.3852e-07 AU
i 3.462873907129917 6.2861e-06 deg
node 268.4609461280181 9.9071e-05 deg
peri 53.50454747008337 0.00010041 deg
M 30.80114102172343 1.3639e-05 deg
tp 2456880.816145788920
(2014-Aug-11.31614579)
5.3149e-05 JED
period 1398.850370043139
3.83
1.2083e-05
3.308e-08
d
yr
n .2573541872022367 2.2229e-09 deg/d
Q 2.974825017084905 1.713e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      869  
   data-arc span      13967 days (38.24 yr)  
   first obs. used      1976-10-24  
   last obs. used      2015-01-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56464  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 14:14:51  

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
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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