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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3060236484866458 4.1162e-08  
a 2.228674092682624 1.0397e-08 AU
q 1.546647115552222 9.2521e-08 AU
i 6.057065991618075 5.3777e-06 deg
node 98.09583071296265 4.5375e-05 deg
peri 268.9784135353748 4.6458e-05 deg
M 218.8523582193994 1.0701e-05 deg
tp 2457476.974211051331
(2016-Mar-29.47421105)
3.7634e-05 JED
period 1215.257398668453
3.33
8.5042e-06
2.328e-08
d
yr
n .2962335389971285 2.073e-09 deg/d
Q 2.910701069813026 1.3579e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1078  
   data-arc span      12634 days (34.59 yr)  
   first obs. used      1979-11-16  
   last obs. used      2014-06-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55232  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Aug-13 14:08:21  

Additional Information
 Earth MOID = .561028 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. 2014-Mar-01) 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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