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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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3059624240302048 4.1152e-08  
a 2.228751800026735 1.0456e-08 AU
q 1.546837496728873 9.2506e-08 AU
i 6.057064776656845 5.3793e-06 deg
node 98.09774099646096 4.5374e-05 deg
peri 268.9942811875264 4.6458e-05 deg
M 159.5747825018195 1.0538e-05 deg
tp 2456261.792840191546
(2012-Nov-30.29284019)
3.4324e-05 JED
period 1215.320957926621
3.33
8.552e-06
2.341e-08
d
yr
n .2962180464773456 2.0844e-09 deg/d
Q 2.910666103324597 1.3655e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1072  
   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      .55372  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:14:30  

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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