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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .214672783366079 5.327e-08  
a 2.448441979399387 1.1435e-08 au
q 1.922828124771368 1.3054e-07 au
i 3.461400430670928 5.7648e-06 deg
node 268.436890939964 8.2741e-05 deg
peri 53.52400845387527 8.3544e-05 deg
M 185.2504654926475 1.0875e-05 deg
tp 2458279.776639261609
(2018-Jun-10.27663926)
4.3133e-05 JED
period 1399.371911482204
3.83
9.803e-06
2.684e-08
d
yr
n .2572582721191615 1.8022e-09 deg/d
Q 2.974055834027405 1.3889e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1072  
   data-arc span      14405 days (39.44 yr)  
   first obs. used      1976-10-24  
   last obs. used      2016-04-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57463  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:03:07  

Additional Information
 Earth MOID = .912059 au 
 Jupiter MOID = 2.34517 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 14.7 mag n/a MPO358715  

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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