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6444 (1989 WW)
Classification: Mars-crossing Asteroid          SPK-ID: 2006444
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3059624341934575 4.4222e-08  
a 2.228751786703447 1.0319e-08 AU
q 1.546837464830643 9.9439e-08 AU
i 6.057071582776995 5.934e-06 deg
node 98.09770013062412 4.8629e-05 deg
peri 268.9943401434676 4.9857e-05 deg
M 159.5747756018397 1.1599e-05 deg
tp 2456261.792868315647
(2012-Nov-30.29286832)
3.7763e-05 JED
period 1215.320947028993
3.33
8.4402e-06
2.311e-08
d
yr
n .2962180491334949 2.0572e-09 deg/d
Q 2.910666108576251 1.3476e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1051  
   data-arc span      12562 days (34.39 yr)  
   first obs. used      1979-11-16  
   last obs. used      2014-04-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56933  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Apr-17 13:50:28  

Additional Information
 Earth MOID = .559856 AU 
 T_jup = 3.574 
[ 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 14.1 mag n/a MPO253408  
rotation period rot_per 7.9290 h n/a Asteroid Lightcurve DataBase (Rev. 2013-Sep-12) Published Reference List:
[Warner, B.D. (2010) Minor Planet Bul. 37, 57-64.]

6444 (1989 WW)          Discovered 1989-Nov-20 by Suzuki, K., Urata, T. at Toyota
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1989 WW = 1969 VB3 = 1979 WD3 = 1979 YP6 = 1986 YO 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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